157217720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^3\times {\mathrm{2953}}^1$

素因数の和:2997

約数の個数: 64

約数和(自身を含む): 389219040

約数和(自身を除く): 232001320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 1331, 2420, 2662, 2953, 4840, 5324, 5906, 6655, 10648, 11812, 13310, 14765, 23624, 26620, 29530, 32483, 53240, 59060, 64966, 118120, 129932, 162415, 259864, 324830, 357313, 649660, 714626, 1299320, 1429252, 1786565, 2858504, 3573130, 3930443, 7146260, 7860886, 14292520, 15721772, 19652215, 31443544, 39304430, 78608860, 157217720]

約数ペア:

[(1, 157217720), (2, 78608860), (4, 39304430), (5, 31443544), (8, 19652215), (10, 15721772), (11, 14292520), (20, 7860886), (22, 7146260), (40, 3930443), (44, 3573130), (55, 2858504), (88, 1786565), (110, 1429252), (121, 1299320), (220, 714626), (242, 649660), (440, 357313), (484, 324830), (605, 259864), (968, 162415), (1210, 129932), (1331, 118120), (2420, 64966), (2662, 59060), (2953, 53240), (4840, 32483), (5324, 29530), (5906, 26620), (6655, 23624), (10648, 14765), (11812, 13310)]