19895100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:164

約数の個数: 144

約数和(自身を含む): 62995968

約数和(自身を除く): 43100868

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 25, 30, 34, 47, 50, 51, 60, 68, 75, 83, 85, 94, 100, 102, 141, 150, 166, 170, 188, 204, 235, 249, 255, 282, 300, 332, 340, 415, 425, 470, 498, 510, 564, 705, 799, 830, 850, 940, 996, 1020, 1175, 1245, 1275, 1410, 1411, 1598, 1660, 1700, 2075, 2350, 2397, 2490, 2550, 2820, 2822, 3196, 3525, 3901, 3995, 4150, 4233, 4700, 4794, 4980, 5100, 5644, 6225, 7050, 7055, 7802, 7990, 8300, 8466, 9588, 11703, 11985, 12450, 14100, 14110, 15604, 15980, 16932, 19505, 19975, 21165, 23406, 23970, 24900, 28220, 35275, 39010, 39950, 42330, 46812, 47940, 58515, 59925, 66317, 70550, 78020, 79900, 84660, 97525, 105825, 117030, 119850, 132634, 141100, 195050, 198951, 211650, 234060, 239700, 265268, 292575, 331585, 390100, 397902, 423300, 585150, 663170, 795804, 994755, 1170300, 1326340, 1657925, 1989510, 3315850, 3979020, 4973775, 6631700, 9947550, 19895100]

約数ペア:

[(1, 19895100), (2, 9947550), (3, 6631700), (4, 4973775), (5, 3979020), (6, 3315850), (10, 1989510), (12, 1657925), (15, 1326340), (17, 1170300), (20, 994755), (25, 795804), (30, 663170), (34, 585150), (47, 423300), (50, 397902), (51, 390100), (60, 331585), (68, 292575), (75, 265268), (83, 239700), (85, 234060), (94, 211650), (100, 198951), (102, 195050), (141, 141100), (150, 132634), (166, 119850), (170, 117030), (188, 105825), (204, 97525), (235, 84660), (249, 79900), (255, 78020), (282, 70550), (300, 66317), (332, 59925), (340, 58515), (415, 47940), (425, 46812), (470, 42330), (498, 39950), (510, 39010), (564, 35275), (705, 28220), (799, 24900), (830, 23970), (850, 23406), (940, 21165), (996, 19975), (1020, 19505), (1175, 16932), (1245, 15980), (1275, 15604), (1410, 14110), (1411, 14100), (1598, 12450), (1660, 11985), (1700, 11703), (2075, 9588), (2350, 8466), (2397, 8300), (2490, 7990), (2550, 7802), (2820, 7055), (2822, 7050), (3196, 6225), (3525, 5644), (3901, 5100), (3995, 4980), (4150, 4794), (4233, 4700)]