201988900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{907}}^1$

素因数の和:1069

約数の個数: 72

約数和(自身を含む): 468157536

約数和(自身を除く): 266168636

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 131, 170, 262, 340, 425, 524, 655, 850, 907, 1310, 1700, 1814, 2227, 2620, 3275, 3628, 4454, 4535, 6550, 8908, 9070, 11135, 13100, 15419, 18140, 22270, 22675, 30838, 44540, 45350, 55675, 61676, 77095, 90700, 111350, 118817, 154190, 222700, 237634, 308380, 385475, 475268, 594085, 770950, 1188170, 1541900, 2019889, 2376340, 2970425, 4039778, 5940850, 8079556, 10099445, 11881700, 20198890, 40397780, 50497225, 100994450, 201988900]

約数ペア:

[(1, 201988900), (2, 100994450), (4, 50497225), (5, 40397780), (10, 20198890), (17, 11881700), (20, 10099445), (25, 8079556), (34, 5940850), (50, 4039778), (68, 2970425), (85, 2376340), (100, 2019889), (131, 1541900), (170, 1188170), (262, 770950), (340, 594085), (425, 475268), (524, 385475), (655, 308380), (850, 237634), (907, 222700), (1310, 154190), (1700, 118817), (1814, 111350), (2227, 90700), (2620, 77095), (3275, 61676), (3628, 55675), (4454, 45350), (4535, 44540), (6550, 30838), (8908, 22675), (9070, 22270), (11135, 18140), (13100, 15419)]