19907550

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:155

約数の個数: 144

約数和(自身を含む): 59714928

約数和(自身を除く): 39807378

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 25, 26, 30, 39, 41, 45, 50, 65, 75, 78, 82, 83, 90, 117, 123, 130, 150, 166, 195, 205, 225, 234, 246, 249, 325, 369, 390, 410, 415, 450, 498, 533, 585, 615, 650, 738, 747, 830, 975, 1025, 1066, 1079, 1170, 1230, 1245, 1494, 1599, 1845, 1950, 2050, 2075, 2158, 2490, 2665, 2925, 3075, 3198, 3237, 3403, 3690, 3735, 4150, 4797, 5330, 5395, 5850, 6150, 6225, 6474, 6806, 7470, 7995, 9225, 9594, 9711, 10209, 10790, 12450, 13325, 15990, 16185, 17015, 18450, 18675, 19422, 20418, 23985, 26650, 26975, 30627, 32370, 34030, 37350, 39975, 44239, 47970, 48555, 51045, 53950, 61254, 79950, 80925, 85075, 88478, 97110, 102090, 119925, 132717, 153135, 161850, 170150, 221195, 239850, 242775, 255225, 265434, 306270, 398151, 442390, 485550, 510450, 663585, 765675, 796302, 1105975, 1327170, 1531350, 1990755, 2211950, 3317925, 3981510, 6635850, 9953775, 19907550]

約数ペア:

[(1, 19907550), (2, 9953775), (3, 6635850), (5, 3981510), (6, 3317925), (9, 2211950), (10, 1990755), (13, 1531350), (15, 1327170), (18, 1105975), (25, 796302), (26, 765675), (30, 663585), (39, 510450), (41, 485550), (45, 442390), (50, 398151), (65, 306270), (75, 265434), (78, 255225), (82, 242775), (83, 239850), (90, 221195), (117, 170150), (123, 161850), (130, 153135), (150, 132717), (166, 119925), (195, 102090), (205, 97110), (225, 88478), (234, 85075), (246, 80925), (249, 79950), (325, 61254), (369, 53950), (390, 51045), (410, 48555), (415, 47970), (450, 44239), (498, 39975), (533, 37350), (585, 34030), (615, 32370), (650, 30627), (738, 26975), (747, 26650), (830, 23985), (975, 20418), (1025, 19422), (1066, 18675), (1079, 18450), (1170, 17015), (1230, 16185), (1245, 15990), (1494, 13325), (1599, 12450), (1845, 10790), (1950, 10209), (2050, 9711), (2075, 9594), (2158, 9225), (2490, 7995), (2665, 7470), (2925, 6806), (3075, 6474), (3198, 6225), (3237, 6150), (3403, 5850), (3690, 5395), (3735, 5330), (4150, 4797)]