315142020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{24659}}^1$

素因数の和:24745

約数の個数: 72

約数和(自身を含む): 969433920

約数和(自身を除く): 654291900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 12780, 24659, 49318, 73977, 98636, 123295, 147954, 221931, 246590, 295908, 369885, 443862, 493180, 739770, 887724, 1109655, 1479540, 1750789, 2219310, 3501578, 4438620, 5252367, 7003156, 8753945, 10504734, 15757101, 17507890, 21009468, 26261835, 31514202, 35015780, 52523670, 63028404, 78785505, 105047340, 157571010, 315142020]

約数ペア:

[(1, 315142020), (2, 157571010), (3, 105047340), (4, 78785505), (5, 63028404), (6, 52523670), (9, 35015780), (10, 31514202), (12, 26261835), (15, 21009468), (18, 17507890), (20, 15757101), (30, 10504734), (36, 8753945), (45, 7003156), (60, 5252367), (71, 4438620), (90, 3501578), (142, 2219310), (180, 1750789), (213, 1479540), (284, 1109655), (355, 887724), (426, 739770), (639, 493180), (710, 443862), (852, 369885), (1065, 295908), (1278, 246590), (1420, 221931), (2130, 147954), (2556, 123295), (3195, 98636), (4260, 73977), (6390, 49318), (12780, 24659)]