439898840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{347}}^1\times {\mathrm{773}}^1$

素因数の和:1172

約数の個数: 64

約数和(自身を含む): 1018150560

約数和(自身を除く): 578251720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 347, 410, 694, 773, 820, 1388, 1546, 1640, 1735, 2776, 3092, 3470, 3865, 6184, 6940, 7730, 13880, 14227, 15460, 28454, 30920, 31693, 56908, 63386, 71135, 113816, 126772, 142270, 158465, 253544, 268231, 284540, 316930, 536462, 569080, 633860, 1072924, 1267720, 1341155, 2145848, 2682310, 5364620, 10729240, 10997471, 21994942, 43989884, 54987355, 87979768, 109974710, 219949420, 439898840]

約数ペア:

[(1, 439898840), (2, 219949420), (4, 109974710), (5, 87979768), (8, 54987355), (10, 43989884), (20, 21994942), (40, 10997471), (41, 10729240), (82, 5364620), (164, 2682310), (205, 2145848), (328, 1341155), (347, 1267720), (410, 1072924), (694, 633860), (773, 569080), (820, 536462), (1388, 316930), (1546, 284540), (1640, 268231), (1735, 253544), (2776, 158465), (3092, 142270), (3470, 126772), (3865, 113816), (6184, 71135), (6940, 63386), (7730, 56908), (13880, 31693), (14227, 30920), (15460, 28454)]