28157610

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:208

約数の個数: 128

約数和(自身を含む): 80123904

約数和(自身を除く): 51966294

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 26, 30, 31, 34, 39, 51, 62, 65, 78, 85, 93, 102, 130, 137, 155, 170, 186, 195, 221, 255, 274, 310, 390, 403, 411, 442, 465, 510, 527, 663, 685, 806, 822, 930, 1054, 1105, 1209, 1326, 1370, 1581, 1781, 2015, 2055, 2210, 2329, 2418, 2635, 3162, 3315, 3562, 4030, 4110, 4247, 4658, 5270, 5343, 6045, 6630, 6851, 6987, 7905, 8494, 8905, 10686, 11645, 12090, 12741, 13702, 13974, 15810, 17810, 20553, 21235, 23290, 25482, 26715, 30277, 34255, 34935, 41106, 42470, 53430, 55211, 60554, 63705, 68510, 69870, 72199, 90831, 102765, 110422, 127410, 144398, 151385, 165633, 181662, 205530, 216597, 276055, 302770, 331266, 360995, 433194, 454155, 552110, 721990, 828165, 908310, 938587, 1082985, 1656330, 1877174, 2165970, 2815761, 4692935, 5631522, 9385870, 14078805, 28157610]

約数ペア:

[(1, 28157610), (2, 14078805), (3, 9385870), (5, 5631522), (6, 4692935), (10, 2815761), (13, 2165970), (15, 1877174), (17, 1656330), (26, 1082985), (30, 938587), (31, 908310), (34, 828165), (39, 721990), (51, 552110), (62, 454155), (65, 433194), (78, 360995), (85, 331266), (93, 302770), (102, 276055), (130, 216597), (137, 205530), (155, 181662), (170, 165633), (186, 151385), (195, 144398), (221, 127410), (255, 110422), (274, 102765), (310, 90831), (390, 72199), (403, 69870), (411, 68510), (442, 63705), (465, 60554), (510, 55211), (527, 53430), (663, 42470), (685, 41106), (806, 34935), (822, 34255), (930, 30277), (1054, 26715), (1105, 25482), (1209, 23290), (1326, 21235), (1370, 20553), (1581, 17810), (1781, 15810), (2015, 13974), (2055, 13702), (2210, 12741), (2329, 12090), (2418, 11645), (2635, 10686), (3162, 8905), (3315, 8494), (3562, 7905), (4030, 6987), (4110, 6851), (4247, 6630), (4658, 6045), (5270, 5343)]