42400720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31177}}^1$

素因数の和:31207

約数の個数: 40

約数和(自身を含む): 104383944

約数和(自身を除く): 61983224

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 31177, 62354, 124708, 155885, 249416, 311770, 498832, 530009, 623540, 1060018, 1247080, 2120036, 2494160, 2650045, 4240072, 5300090, 8480144, 10600180, 21200360, 42400720]

約数ペア:

[(1, 42400720), (2, 21200360), (4, 10600180), (5, 8480144), (8, 5300090), (10, 4240072), (16, 2650045), (17, 2494160), (20, 2120036), (34, 1247080), (40, 1060018), (68, 623540), (80, 530009), (85, 498832), (136, 311770), (170, 249416), (272, 155885), (340, 124708), (680, 62354), (1360, 31177)]