388766679860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{4951}}^2$

素因数の和:9985

約数の個数: 72

約数和(自身を含む): 893804620968

約数和(自身を除く): 505037941108

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 3172, 3965, 4951, 7930, 9902, 15860, 19804, 24755, 49510, 64363, 99020, 128726, 257452, 302011, 321815, 604022, 643630, 1208044, 1287260, 1510055, 3020110, 3926143, 6040220, 7852286, 15704572, 19630715, 24512401, 39261430, 49024802, 78522860, 98049604, 122562005, 245124010, 318661213, 490248020, 637322426, 1274644852, 1495256461, 1593306065, 2990512922, 3186612130, 5981025844, 6373224260, 7476282305, 14952564610, 19438333993, 29905129220, 38876667986, 77753335972, 97191669965, 194383339930, 388766679860]

約数ペア:

[(1, 388766679860), (2, 194383339930), (4, 97191669965), (5, 77753335972), (10, 38876667986), (13, 29905129220), (20, 19438333993), (26, 14952564610), (52, 7476282305), (61, 6373224260), (65, 5981025844), (122, 3186612130), (130, 2990512922), (244, 1593306065), (260, 1495256461), (305, 1274644852), (610, 637322426), (793, 490248020), (1220, 318661213), (1586, 245124010), (3172, 122562005), (3965, 98049604), (4951, 78522860), (7930, 49024802), (9902, 39261430), (15860, 24512401), (19804, 19630715), (24755, 15704572), (49510, 7852286), (64363, 6040220), (99020, 3926143), (128726, 3020110), (257452, 1510055), (302011, 1287260), (321815, 1208044), (604022, 643630)]