641897900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{167}}^1$

素因数の和:241

約数の個数: 216

約数和(自身を含む): 1790718720

約数和(自身を除く): 1148820820

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 25, 28, 34, 35, 38, 50, 68, 70, 76, 85, 95, 100, 119, 133, 140, 167, 170, 175, 190, 238, 266, 289, 323, 334, 340, 350, 380, 425, 475, 476, 532, 578, 595, 646, 665, 668, 700, 835, 850, 950, 1156, 1169, 1190, 1292, 1330, 1445, 1615, 1670, 1700, 1900, 2023, 2261, 2338, 2380, 2660, 2839, 2890, 2975, 3173, 3230, 3325, 3340, 4046, 4175, 4522, 4676, 5491, 5678, 5780, 5845, 5950, 6346, 6460, 6650, 7225, 8075, 8092, 8350, 9044, 10115, 10982, 11305, 11356, 11690, 11900, 12692, 13300, 14195, 14450, 15865, 16150, 16700, 19873, 20230, 21964, 22211, 22610, 23380, 27455, 28390, 28900, 29225, 31730, 32300, 38437, 39746, 40460, 44422, 45220, 48263, 50575, 53941, 54910, 56525, 56780, 58450, 63460, 70975, 76874, 79325, 79492, 88844, 96526, 99365, 101150, 107882, 109820, 111055, 113050, 116900, 137275, 141950, 153748, 158650, 192185, 193052, 198730, 202300, 215764, 222110, 226100, 241315, 269705, 274550, 283900, 317300, 337841, 377587, 384370, 397460, 444220, 482630, 496825, 539410, 549100, 555275, 675682, 755174, 768740, 916997, 960925, 965260, 993650, 1078820, 1110550, 1206575, 1348525, 1351364, 1510348, 1689205, 1833994, 1887935, 1921850, 1987300, 2221100, 2413150, 2697050, 3378410, 3667988, 3775870, 3843700, 4584985, 4826300, 5394100, 6418979, 6756820, 7551740, 8446025, 9169970, 9439675, 12837958, 16892050, 18339940, 18879350, 22924925, 25675916, 32094895, 33784100, 37758700, 45849850, 64189790, 91699700, 128379580, 160474475, 320948950, 641897900]

約数ペア:

[(1, 641897900), (2, 320948950), (4, 160474475), (5, 128379580), (7, 91699700), (10, 64189790), (14, 45849850), (17, 37758700), (19, 33784100), (20, 32094895), (25, 25675916), (28, 22924925), (34, 18879350), (35, 18339940), (38, 16892050), (50, 12837958), (68, 9439675), (70, 9169970), (76, 8446025), (85, 7551740), (95, 6756820), (100, 6418979), (119, 5394100), (133, 4826300), (140, 4584985), (167, 3843700), (170, 3775870), (175, 3667988), (190, 3378410), (238, 2697050), (266, 2413150), (289, 2221100), (323, 1987300), (334, 1921850), (340, 1887935), (350, 1833994), (380, 1689205), (425, 1510348), (475, 1351364), (476, 1348525), (532, 1206575), (578, 1110550), (595, 1078820), (646, 993650), (665, 965260), (668, 960925), (700, 916997), (835, 768740), (850, 755174), (950, 675682), (1156, 555275), (1169, 549100), (1190, 539410), (1292, 496825), (1330, 482630), (1445, 444220), (1615, 397460), (1670, 384370), (1700, 377587), (1900, 337841), (2023, 317300), (2261, 283900), (2338, 274550), (2380, 269705), (2660, 241315), (2839, 226100), (2890, 222110), (2975, 215764), (3173, 202300), (3230, 198730), (3325, 193052), (3340, 192185), (4046, 158650), (4175, 153748), (4522, 141950), (4676, 137275), (5491, 116900), (5678, 113050), (5780, 111055), (5845, 109820), (5950, 107882), (6346, 101150), (6460, 99365), (6650, 96526), (7225, 88844), (8075, 79492), (8092, 79325), (8350, 76874), (9044, 70975), (10115, 63460), (10982, 58450), (11305, 56780), (11356, 56525), (11690, 54910), (11900, 53941), (12692, 50575), (13300, 48263), (14195, 45220), (14450, 44422), (15865, 40460), (16150, 39746), (16700, 38437), (19873, 32300), (20230, 31730), (21964, 29225), (22211, 28900), (22610, 28390), (23380, 27455)]