30505640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:171

約数の個数: 128

約数和(自身を含む): 81648000

約数和(自身を除く): 51142360

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 41, 44, 55, 76, 82, 88, 89, 95, 110, 152, 164, 178, 190, 205, 209, 220, 328, 356, 380, 410, 418, 440, 445, 451, 712, 760, 779, 820, 836, 890, 902, 979, 1045, 1558, 1640, 1672, 1691, 1780, 1804, 1958, 2090, 2255, 3116, 3382, 3560, 3608, 3649, 3895, 3916, 4180, 4510, 4895, 6232, 6764, 7298, 7790, 7832, 8360, 8455, 8569, 9020, 9790, 13528, 14596, 15580, 16910, 17138, 18040, 18245, 18601, 19580, 29192, 31160, 33820, 34276, 36490, 37202, 39160, 40139, 42845, 67640, 68552, 69331, 72980, 74404, 80278, 85690, 93005, 138662, 145960, 148808, 160556, 171380, 186010, 200695, 277324, 321112, 342760, 346655, 372020, 401390, 554648, 693310, 744040, 762641, 802780, 1386620, 1525282, 1605560, 2773240, 3050564, 3813205, 6101128, 7626410, 15252820, 30505640]

約数ペア:

[(1, 30505640), (2, 15252820), (4, 7626410), (5, 6101128), (8, 3813205), (10, 3050564), (11, 2773240), (19, 1605560), (20, 1525282), (22, 1386620), (38, 802780), (40, 762641), (41, 744040), (44, 693310), (55, 554648), (76, 401390), (82, 372020), (88, 346655), (89, 342760), (95, 321112), (110, 277324), (152, 200695), (164, 186010), (178, 171380), (190, 160556), (205, 148808), (209, 145960), (220, 138662), (328, 93005), (356, 85690), (380, 80278), (410, 74404), (418, 72980), (440, 69331), (445, 68552), (451, 67640), (712, 42845), (760, 40139), (779, 39160), (820, 37202), (836, 36490), (890, 34276), (902, 33820), (979, 31160), (1045, 29192), (1558, 19580), (1640, 18601), (1672, 18245), (1691, 18040), (1780, 17138), (1804, 16910), (1958, 15580), (2090, 14596), (2255, 13528), (3116, 9790), (3382, 9020), (3560, 8569), (3608, 8455), (3649, 8360), (3895, 7832), (3916, 7790), (4180, 7298), (4510, 6764), (4895, 6232)]