28273140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1181}}^1$

素因数の和:1222

約数の個数: 144

約数和(自身を含む): 103259520

約数和(自身を除く): 74986380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 57, 60, 63, 70, 76, 84, 90, 95, 105, 114, 126, 133, 140, 171, 180, 190, 210, 228, 252, 266, 285, 315, 342, 380, 399, 420, 532, 570, 630, 665, 684, 798, 855, 1140, 1181, 1197, 1260, 1330, 1596, 1710, 1995, 2362, 2394, 2660, 3420, 3543, 3990, 4724, 4788, 5905, 5985, 7086, 7980, 8267, 10629, 11810, 11970, 14172, 16534, 17715, 21258, 22439, 23620, 23940, 24801, 33068, 35430, 41335, 42516, 44878, 49602, 53145, 67317, 70860, 74403, 82670, 89756, 99204, 106290, 112195, 124005, 134634, 148806, 157073, 165340, 201951, 212580, 224390, 248010, 269268, 297612, 314146, 336585, 372015, 403902, 448780, 471219, 496020, 628292, 673170, 744030, 785365, 807804, 942438, 1009755, 1346340, 1413657, 1488060, 1570730, 1884876, 2019510, 2356095, 2827314, 3141460, 4039020, 4712190, 5654628, 7068285, 9424380, 14136570, 28273140]

約数ペア:

[(1, 28273140), (2, 14136570), (3, 9424380), (4, 7068285), (5, 5654628), (6, 4712190), (7, 4039020), (9, 3141460), (10, 2827314), (12, 2356095), (14, 2019510), (15, 1884876), (18, 1570730), (19, 1488060), (20, 1413657), (21, 1346340), (28, 1009755), (30, 942438), (35, 807804), (36, 785365), (38, 744030), (42, 673170), (45, 628292), (57, 496020), (60, 471219), (63, 448780), (70, 403902), (76, 372015), (84, 336585), (90, 314146), (95, 297612), (105, 269268), (114, 248010), (126, 224390), (133, 212580), (140, 201951), (171, 165340), (180, 157073), (190, 148806), (210, 134634), (228, 124005), (252, 112195), (266, 106290), (285, 99204), (315, 89756), (342, 82670), (380, 74403), (399, 70860), (420, 67317), (532, 53145), (570, 49602), (630, 44878), (665, 42516), (684, 41335), (798, 35430), (855, 33068), (1140, 24801), (1181, 23940), (1197, 23620), (1260, 22439), (1330, 21258), (1596, 17715), (1710, 16534), (1995, 14172), (2362, 11970), (2394, 11810), (2660, 10629), (3420, 8267), (3543, 7980), (3990, 7086), (4724, 5985), (4788, 5905)]