27829880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{491}}^1$

素因数の和:624

約数の個数: 64

約数和(自身を含む): 68191200

約数和(自身を除く): 40361320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 109, 130, 218, 260, 436, 491, 520, 545, 872, 982, 1090, 1417, 1964, 2180, 2455, 2834, 3928, 4360, 4910, 5668, 6383, 7085, 9820, 11336, 12766, 14170, 19640, 25532, 28340, 31915, 51064, 53519, 56680, 63830, 107038, 127660, 214076, 255320, 267595, 428152, 535190, 695747, 1070380, 1391494, 2140760, 2782988, 3478735, 5565976, 6957470, 13914940, 27829880]

約数ペア:

[(1, 27829880), (2, 13914940), (4, 6957470), (5, 5565976), (8, 3478735), (10, 2782988), (13, 2140760), (20, 1391494), (26, 1070380), (40, 695747), (52, 535190), (65, 428152), (104, 267595), (109, 255320), (130, 214076), (218, 127660), (260, 107038), (436, 63830), (491, 56680), (520, 53519), (545, 51064), (872, 31915), (982, 28340), (1090, 25532), (1417, 19640), (1964, 14170), (2180, 12766), (2455, 11336), (2834, 9820), (3928, 7085), (4360, 6383), (4910, 5668)]