19725100

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{283}}^1$

素因数の和:355

約数の個数: 72

約数和(自身を含む): 46590768

約数和(自身を除く): 26865668

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 41, 50, 68, 82, 85, 100, 164, 170, 205, 283, 340, 410, 425, 566, 697, 820, 850, 1025, 1132, 1394, 1415, 1700, 2050, 2788, 2830, 3485, 4100, 4811, 5660, 6970, 7075, 9622, 11603, 13940, 14150, 17425, 19244, 23206, 24055, 28300, 34850, 46412, 48110, 58015, 69700, 96220, 116030, 120275, 197251, 232060, 240550, 290075, 394502, 481100, 580150, 789004, 986255, 1160300, 1972510, 3945020, 4931275, 9862550, 19725100]

約数ペア:

[(1, 19725100), (2, 9862550), (4, 4931275), (5, 3945020), (10, 1972510), (17, 1160300), (20, 986255), (25, 789004), (34, 580150), (41, 481100), (50, 394502), (68, 290075), (82, 240550), (85, 232060), (100, 197251), (164, 120275), (170, 116030), (205, 96220), (283, 69700), (340, 58015), (410, 48110), (425, 46412), (566, 34850), (697, 28300), (820, 24055), (850, 23206), (1025, 19244), (1132, 17425), (1394, 14150), (1415, 13940), (1700, 11603), (2050, 9622), (2788, 7075), (2830, 6970), (3485, 5660), (4100, 4811)]