18290980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2339}}^1$

素因数の和:2388

約数の個数: 48

約数和(自身を含む): 42456960

約数和(自身を除く): 24165980

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 2339, 3910, 4678, 7820, 9356, 11695, 23390, 39763, 46780, 53797, 79526, 107594, 159052, 198815, 215188, 268985, 397630, 537970, 795260, 914549, 1075940, 1829098, 3658196, 4572745, 9145490, 18290980]

約数ペア:

[(1, 18290980), (2, 9145490), (4, 4572745), (5, 3658196), (10, 1829098), (17, 1075940), (20, 914549), (23, 795260), (34, 537970), (46, 397630), (68, 268985), (85, 215188), (92, 198815), (115, 159052), (170, 107594), (230, 79526), (340, 53797), (391, 46780), (460, 39763), (782, 23390), (1564, 11695), (1955, 9356), (2339, 7820), (3910, 4678)]