87888980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{11239}}^1$

素因数の和:11288

約数の個数: 48

約数和(自身を含む): 203938560

約数和(自身を除く): 116049580

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, 3910, 7820, 11239, 22478, 44956, 56195, 112390, 191063, 224780, 258497, 382126, 516994, 764252, 955315, 1033988, 1292485, 1910630, 2584970, 3821260, 4394449, 5169940, 8788898, 17577796, 21972245, 43944490, 87888980]

約数ペア:

[(1, 87888980), (2, 43944490), (4, 21972245), (5, 17577796), (10, 8788898), (17, 5169940), (20, 4394449), (23, 3821260), (34, 2584970), (46, 1910630), (68, 1292485), (85, 1033988), (92, 955315), (115, 764252), (170, 516994), (230, 382126), (340, 258497), (391, 224780), (460, 191063), (782, 112390), (1564, 56195), (1955, 44956), (3910, 22478), (7820, 11239)]