31468720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12689}}^1$

素因数の和:12733

約数の個数: 40

約数和(自身を含む): 75530880

約数和(自身を除く): 44062160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 12689, 25378, 50756, 63445, 101512, 126890, 203024, 253780, 393359, 507560, 786718, 1015120, 1573436, 1966795, 3146872, 3933590, 6293744, 7867180, 15734360, 31468720]

約数ペア:

[(1, 31468720), (2, 15734360), (4, 7867180), (5, 6293744), (8, 3933590), (10, 3146872), (16, 1966795), (20, 1573436), (31, 1015120), (40, 786718), (62, 507560), (80, 393359), (124, 253780), (155, 203024), (248, 126890), (310, 101512), (496, 63445), (620, 50756), (1240, 25378), (2480, 12689)]