80641800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{631}}^1$

素因数の和:724

約数の個数: 144

約数和(自身を含む): 275071680

約数和(自身を除く): 194429880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 71, 72, 75, 90, 100, 120, 142, 150, 180, 200, 213, 225, 284, 300, 355, 360, 426, 450, 568, 600, 631, 639, 710, 852, 900, 1065, 1262, 1278, 1420, 1704, 1775, 1800, 1893, 2130, 2524, 2556, 2840, 3155, 3195, 3550, 3786, 4260, 5048, 5112, 5325, 5679, 6310, 6390, 7100, 7572, 8520, 9465, 10650, 11358, 12620, 12780, 14200, 15144, 15775, 15975, 18930, 21300, 22716, 25240, 25560, 28395, 31550, 31950, 37860, 42600, 44801, 45432, 47325, 56790, 63100, 63900, 75720, 89602, 94650, 113580, 126200, 127800, 134403, 141975, 179204, 189300, 224005, 227160, 268806, 283950, 358408, 378600, 403209, 448010, 537612, 567900, 672015, 806418, 896020, 1075224, 1120025, 1135800, 1344030, 1612836, 1792040, 2016045, 2240050, 2688060, 3225672, 3360075, 4032090, 4480100, 5376120, 6720150, 8064180, 8960200, 10080225, 13440300, 16128360, 20160450, 26880600, 40320900, 80641800]

約数ペア:

[(1, 80641800), (2, 40320900), (3, 26880600), (4, 20160450), (5, 16128360), (6, 13440300), (8, 10080225), (9, 8960200), (10, 8064180), (12, 6720150), (15, 5376120), (18, 4480100), (20, 4032090), (24, 3360075), (25, 3225672), (30, 2688060), (36, 2240050), (40, 2016045), (45, 1792040), (50, 1612836), (60, 1344030), (71, 1135800), (72, 1120025), (75, 1075224), (90, 896020), (100, 806418), (120, 672015), (142, 567900), (150, 537612), (180, 448010), (200, 403209), (213, 378600), (225, 358408), (284, 283950), (300, 268806), (355, 227160), (360, 224005), (426, 189300), (450, 179204), (568, 141975), (600, 134403), (631, 127800), (639, 126200), (710, 113580), (852, 94650), (900, 89602), (1065, 75720), (1262, 63900), (1278, 63100), (1420, 56790), (1704, 47325), (1775, 45432), (1800, 44801), (1893, 42600), (2130, 37860), (2524, 31950), (2556, 31550), (2840, 28395), (3155, 25560), (3195, 25240), (3550, 22716), (3786, 21300), (4260, 18930), (5048, 15975), (5112, 15775), (5325, 15144), (5679, 14200), (6310, 12780), (6390, 12620), (7100, 11358), (7572, 10650), (8520, 9465)]