71816940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{653}}^1$

素因数の和:728

約数の個数: 144

約数和(自身を含む): 239960448

約数和(自身を除く): 168143508

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 47, 52, 60, 65, 78, 90, 94, 117, 130, 141, 156, 180, 188, 195, 234, 235, 260, 282, 390, 423, 468, 470, 564, 585, 611, 653, 705, 780, 846, 940, 1170, 1222, 1306, 1410, 1692, 1833, 1959, 2115, 2340, 2444, 2612, 2820, 3055, 3265, 3666, 3918, 4230, 5499, 5877, 6110, 6530, 7332, 7836, 8460, 8489, 9165, 9795, 10998, 11754, 12220, 13060, 16978, 18330, 19590, 21996, 23508, 25467, 27495, 29385, 30691, 33956, 36660, 39180, 42445, 50934, 54990, 58770, 61382, 76401, 84890, 92073, 101868, 109980, 117540, 122764, 127335, 152802, 153455, 169780, 184146, 254670, 276219, 305604, 306910, 368292, 382005, 398983, 460365, 509340, 552438, 613820, 764010, 797966, 920730, 1104876, 1196949, 1381095, 1528020, 1595932, 1841460, 1994915, 2393898, 2762190, 3590847, 3989830, 4787796, 5524380, 5984745, 7181694, 7979660, 11969490, 14363388, 17954235, 23938980, 35908470, 71816940]

約数ペア:

[(1, 71816940), (2, 35908470), (3, 23938980), (4, 17954235), (5, 14363388), (6, 11969490), (9, 7979660), (10, 7181694), (12, 5984745), (13, 5524380), (15, 4787796), (18, 3989830), (20, 3590847), (26, 2762190), (30, 2393898), (36, 1994915), (39, 1841460), (45, 1595932), (47, 1528020), (52, 1381095), (60, 1196949), (65, 1104876), (78, 920730), (90, 797966), (94, 764010), (117, 613820), (130, 552438), (141, 509340), (156, 460365), (180, 398983), (188, 382005), (195, 368292), (234, 306910), (235, 305604), (260, 276219), (282, 254670), (390, 184146), (423, 169780), (468, 153455), (470, 152802), (564, 127335), (585, 122764), (611, 117540), (653, 109980), (705, 101868), (780, 92073), (846, 84890), (940, 76401), (1170, 61382), (1222, 58770), (1306, 54990), (1410, 50934), (1692, 42445), (1833, 39180), (1959, 36660), (2115, 33956), (2340, 30691), (2444, 29385), (2612, 27495), (2820, 25467), (3055, 23508), (3265, 21996), (3666, 19590), (3918, 18330), (4230, 16978), (5499, 13060), (5877, 12220), (6110, 11754), (6530, 10998), (7332, 9795), (7836, 9165), (8460, 8489)]