28874300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1$

素因数の和:220

約数の個数: 144

約数和(自身を含む): 81661440

約数和(自身を除く): 52787140

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 25, 26, 28, 35, 38, 50, 52, 65, 70, 76, 91, 95, 100, 130, 133, 140, 167, 175, 182, 190, 247, 260, 266, 325, 334, 350, 364, 380, 455, 475, 494, 532, 650, 665, 668, 700, 835, 910, 950, 988, 1169, 1235, 1300, 1330, 1670, 1729, 1820, 1900, 2171, 2275, 2338, 2470, 2660, 3173, 3325, 3340, 3458, 4175, 4342, 4550, 4676, 4940, 5845, 6175, 6346, 6650, 6916, 8350, 8645, 8684, 9100, 10855, 11690, 12350, 12692, 13300, 15197, 15865, 16700, 17290, 21710, 22211, 23380, 24700, 29225, 30394, 31730, 34580, 41249, 43225, 43420, 44422, 54275, 58450, 60788, 63460, 75985, 79325, 82498, 86450, 88844, 108550, 111055, 116900, 151970, 158650, 164996, 172900, 206245, 217100, 222110, 288743, 303940, 317300, 379925, 412490, 444220, 555275, 577486, 759850, 824980, 1031225, 1110550, 1154972, 1443715, 1519700, 2062450, 2221100, 2887430, 4124900, 5774860, 7218575, 14437150, 28874300]

約数ペア:

[(1, 28874300), (2, 14437150), (4, 7218575), (5, 5774860), (7, 4124900), (10, 2887430), (13, 2221100), (14, 2062450), (19, 1519700), (20, 1443715), (25, 1154972), (26, 1110550), (28, 1031225), (35, 824980), (38, 759850), (50, 577486), (52, 555275), (65, 444220), (70, 412490), (76, 379925), (91, 317300), (95, 303940), (100, 288743), (130, 222110), (133, 217100), (140, 206245), (167, 172900), (175, 164996), (182, 158650), (190, 151970), (247, 116900), (260, 111055), (266, 108550), (325, 88844), (334, 86450), (350, 82498), (364, 79325), (380, 75985), (455, 63460), (475, 60788), (494, 58450), (532, 54275), (650, 44422), (665, 43420), (668, 43225), (700, 41249), (835, 34580), (910, 31730), (950, 30394), (988, 29225), (1169, 24700), (1235, 23380), (1300, 22211), (1330, 21710), (1670, 17290), (1729, 16700), (1820, 15865), (1900, 15197), (2171, 13300), (2275, 12692), (2338, 12350), (2470, 11690), (2660, 10855), (3173, 9100), (3325, 8684), (3340, 8645), (3458, 8350), (4175, 6916), (4342, 6650), (4550, 6346), (4676, 6175), (4940, 5845)]