78206940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{8867}}^1$

素因数の和:8896

約数の個数: 108

約数和(自身を含む): 275989896

約数和(自身を除く): 197782956

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 4410, 8820, 8867, 17734, 26601, 35468, 44335, 53202, 62069, 79803, 88670, 106404, 124138, 133005, 159606, 177340, 186207, 248276, 266010, 310345, 319212, 372414, 399015, 434483, 532020, 558621, 620690, 744828, 798030, 868966, 931035, 1117242, 1241380, 1303449, 1596060, 1737932, 1862070, 2172415, 2234484, 2606898, 2793105, 3724140, 3910347, 4344830, 5213796, 5586210, 6517245, 7820694, 8689660, 11172420, 13034490, 15641388, 19551735, 26068980, 39103470, 78206940]

約数ペア:

[(1, 78206940), (2, 39103470), (3, 26068980), (4, 19551735), (5, 15641388), (6, 13034490), (7, 11172420), (9, 8689660), (10, 7820694), (12, 6517245), (14, 5586210), (15, 5213796), (18, 4344830), (20, 3910347), (21, 3724140), (28, 2793105), (30, 2606898), (35, 2234484), (36, 2172415), (42, 1862070), (45, 1737932), (49, 1596060), (60, 1303449), (63, 1241380), (70, 1117242), (84, 931035), (90, 868966), (98, 798030), (105, 744828), (126, 620690), (140, 558621), (147, 532020), (180, 434483), (196, 399015), (210, 372414), (245, 319212), (252, 310345), (294, 266010), (315, 248276), (420, 186207), (441, 177340), (490, 159606), (588, 133005), (630, 124138), (735, 106404), (882, 88670), (980, 79803), (1260, 62069), (1470, 53202), (1764, 44335), (2205, 35468), (2940, 26601), (4410, 17734), (8820, 8867)]