201254840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:505

約数の個数: 128

約数和(自身を含む): 519566400

約数和(自身を除く): 318311560

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 37, 38, 40, 68, 74, 76, 85, 95, 136, 148, 152, 170, 185, 190, 296, 323, 340, 370, 380, 421, 629, 646, 680, 703, 740, 760, 842, 1258, 1292, 1406, 1480, 1615, 1684, 2105, 2516, 2584, 2812, 3145, 3230, 3368, 3515, 4210, 5032, 5624, 6290, 6460, 7030, 7157, 7999, 8420, 11951, 12580, 12920, 14060, 14314, 15577, 15998, 16840, 23902, 25160, 28120, 28628, 31154, 31996, 35785, 39995, 47804, 57256, 59755, 62308, 63992, 71570, 77885, 79990, 95608, 119510, 124616, 135983, 143140, 155770, 159980, 239020, 264809, 271966, 286280, 295963, 311540, 319960, 478040, 529618, 543932, 591926, 623080, 679915, 1059236, 1087864, 1183852, 1324045, 1359830, 1479815, 2118472, 2367704, 2648090, 2719660, 2959630, 5031371, 5296180, 5439320, 5919260, 10062742, 10592360, 11838520, 20125484, 25156855, 40250968, 50313710, 100627420, 201254840]

約数ペア:

[(1, 201254840), (2, 100627420), (4, 50313710), (5, 40250968), (8, 25156855), (10, 20125484), (17, 11838520), (19, 10592360), (20, 10062742), (34, 5919260), (37, 5439320), (38, 5296180), (40, 5031371), (68, 2959630), (74, 2719660), (76, 2648090), (85, 2367704), (95, 2118472), (136, 1479815), (148, 1359830), (152, 1324045), (170, 1183852), (185, 1087864), (190, 1059236), (296, 679915), (323, 623080), (340, 591926), (370, 543932), (380, 529618), (421, 478040), (629, 319960), (646, 311540), (680, 295963), (703, 286280), (740, 271966), (760, 264809), (842, 239020), (1258, 159980), (1292, 155770), (1406, 143140), (1480, 135983), (1615, 124616), (1684, 119510), (2105, 95608), (2516, 79990), (2584, 77885), (2812, 71570), (3145, 63992), (3230, 62308), (3368, 59755), (3515, 57256), (4210, 47804), (5032, 39995), (5624, 35785), (6290, 31996), (6460, 31154), (7030, 28628), (7157, 28120), (7999, 25160), (8420, 23902), (11951, 16840), (12580, 15998), (12920, 15577), (14060, 14314)]