20633240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1597}}^1$

素因数の和:1644

約数の個数: 64

約数和(自身を含む): 51775200

約数和(自身を除く): 31141960

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 323, 340, 380, 646, 680, 760, 1292, 1597, 1615, 2584, 3194, 3230, 6388, 6460, 7985, 12776, 12920, 15970, 27149, 30343, 31940, 54298, 60686, 63880, 108596, 121372, 135745, 151715, 217192, 242744, 271490, 303430, 515831, 542980, 606860, 1031662, 1085960, 1213720, 2063324, 2579155, 4126648, 5158310, 10316620, 20633240]

約数ペア:

[(1, 20633240), (2, 10316620), (4, 5158310), (5, 4126648), (8, 2579155), (10, 2063324), (17, 1213720), (19, 1085960), (20, 1031662), (34, 606860), (38, 542980), (40, 515831), (68, 303430), (76, 271490), (85, 242744), (95, 217192), (136, 151715), (152, 135745), (170, 121372), (190, 108596), (323, 63880), (340, 60686), (380, 54298), (646, 31940), (680, 30343), (760, 27149), (1292, 15970), (1597, 12920), (1615, 12776), (2584, 7985), (3194, 6460), (3230, 6388)]