28726770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:160

約数の個数: 128

約数和(自身を含む): 79626240

約数和(自身を除く): 50899470

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 23, 30, 31, 34, 46, 51, 62, 69, 79, 85, 93, 102, 115, 138, 155, 158, 170, 186, 230, 237, 255, 310, 345, 391, 395, 465, 474, 510, 527, 690, 713, 782, 790, 930, 1054, 1173, 1185, 1343, 1426, 1581, 1817, 1955, 2139, 2346, 2370, 2449, 2635, 2686, 3162, 3565, 3634, 3910, 4029, 4278, 4898, 5270, 5451, 5865, 6715, 7130, 7347, 7905, 8058, 9085, 10695, 10902, 11730, 12121, 12245, 13430, 14694, 15810, 18170, 20145, 21390, 24242, 24490, 27255, 30889, 36363, 36735, 40290, 41633, 54510, 56327, 60605, 61778, 72726, 73470, 83266, 92667, 112654, 121210, 124899, 154445, 168981, 181815, 185334, 208165, 249798, 281635, 308890, 337962, 363630, 416330, 463335, 563270, 624495, 844905, 926670, 957559, 1248990, 1689810, 1915118, 2872677, 4787795, 5745354, 9575590, 14363385, 28726770]

約数ペア:

[(1, 28726770), (2, 14363385), (3, 9575590), (5, 5745354), (6, 4787795), (10, 2872677), (15, 1915118), (17, 1689810), (23, 1248990), (30, 957559), (31, 926670), (34, 844905), (46, 624495), (51, 563270), (62, 463335), (69, 416330), (79, 363630), (85, 337962), (93, 308890), (102, 281635), (115, 249798), (138, 208165), (155, 185334), (158, 181815), (170, 168981), (186, 154445), (230, 124899), (237, 121210), (255, 112654), (310, 92667), (345, 83266), (391, 73470), (395, 72726), (465, 61778), (474, 60605), (510, 56327), (527, 54510), (690, 41633), (713, 40290), (782, 36735), (790, 36363), (930, 30889), (1054, 27255), (1173, 24490), (1185, 24242), (1343, 21390), (1426, 20145), (1581, 18170), (1817, 15810), (1955, 14694), (2139, 13430), (2346, 12245), (2370, 12121), (2449, 11730), (2635, 10902), (2686, 10695), (3162, 9085), (3565, 8058), (3634, 7905), (3910, 7347), (4029, 7130), (4278, 6715), (4898, 5865), (5270, 5451)]