20802944812

素因数分解:

$2^2\times {\mathrm{13}}^3\times {\mathrm{17}}^2\times {\mathrm{8191}}^1$

素因数の和:8268

約数の個数: 72

約数和(自身を含む): 41898967040

約数和(自身を除く): 21096022228

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 169, 221, 289, 338, 442, 578, 676, 884, 1156, 2197, 2873, 3757, 4394, 5746, 7514, 8191, 8788, 11492, 15028, 16382, 32764, 37349, 48841, 74698, 97682, 106483, 139247, 149396, 195364, 212966, 278494, 425932, 556988, 634933, 1269866, 1384279, 1810211, 2367199, 2539732, 2768558, 3620422, 4734398, 5537116, 7240844, 9468796, 17995627, 23532743, 30773587, 35991254, 47065486, 61547174, 71982508, 94130972, 123094348, 305925659, 400056631, 611851318, 800113262, 1223702636, 1600226524, 5200736203, 10401472406, 20802944812]

約数ペア:

[(1, 20802944812), (2, 10401472406), (4, 5200736203), (13, 1600226524), (17, 1223702636), (26, 800113262), (34, 611851318), (52, 400056631), (68, 305925659), (169, 123094348), (221, 94130972), (289, 71982508), (338, 61547174), (442, 47065486), (578, 35991254), (676, 30773587), (884, 23532743), (1156, 17995627), (2197, 9468796), (2873, 7240844), (3757, 5537116), (4394, 4734398), (5746, 3620422), (7514, 2768558), (8191, 2539732), (8788, 2367199), (11492, 1810211), (15028, 1384279), (16382, 1269866), (32764, 634933), (37349, 556988), (48841, 425932), (74698, 278494), (97682, 212966), (106483, 195364), (139247, 149396)]