19288720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{953}}^1$

素因数の和:1000

約数の個数: 80

約数和(自身を含む): 51103872

約数和(自身を除く): 31815152

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 40, 44, 46, 55, 80, 88, 92, 110, 115, 176, 184, 220, 230, 253, 368, 440, 460, 506, 880, 920, 953, 1012, 1265, 1840, 1906, 2024, 2530, 3812, 4048, 4765, 5060, 7624, 9530, 10120, 10483, 15248, 19060, 20240, 20966, 21919, 38120, 41932, 43838, 52415, 76240, 83864, 87676, 104830, 109595, 167728, 175352, 209660, 219190, 241109, 350704, 419320, 438380, 482218, 838640, 876760, 964436, 1205545, 1753520, 1928872, 2411090, 3857744, 4822180, 9644360, 19288720]

約数ペア:

[(1, 19288720), (2, 9644360), (4, 4822180), (5, 3857744), (8, 2411090), (10, 1928872), (11, 1753520), (16, 1205545), (20, 964436), (22, 876760), (23, 838640), (40, 482218), (44, 438380), (46, 419320), (55, 350704), (80, 241109), (88, 219190), (92, 209660), (110, 175352), (115, 167728), (176, 109595), (184, 104830), (220, 87676), (230, 83864), (253, 76240), (368, 52415), (440, 43838), (460, 41932), (506, 38120), (880, 21919), (920, 20966), (953, 20240), (1012, 19060), (1265, 15248), (1840, 10483), (1906, 10120), (2024, 9530), (2530, 7624), (3812, 5060), (4048, 4765)]