28215828

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1$

素因数の和:365

約数の個数: 72

約数和(自身を含む): 74570496

約数和(自身を除く): 46354668

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 131, 186, 193, 262, 279, 372, 386, 393, 524, 558, 579, 772, 786, 1116, 1158, 1179, 1572, 1737, 2316, 2358, 3474, 4061, 4716, 5983, 6948, 8122, 11966, 12183, 16244, 17949, 23932, 24366, 25283, 35898, 36549, 48732, 50566, 53847, 71796, 73098, 75849, 101132, 107694, 146196, 151698, 215388, 227547, 303396, 455094, 783773, 910188, 1567546, 2351319, 3135092, 4702638, 7053957, 9405276, 14107914, 28215828]

約数ペア:

[(1, 28215828), (2, 14107914), (3, 9405276), (4, 7053957), (6, 4702638), (9, 3135092), (12, 2351319), (18, 1567546), (31, 910188), (36, 783773), (62, 455094), (93, 303396), (124, 227547), (131, 215388), (186, 151698), (193, 146196), (262, 107694), (279, 101132), (372, 75849), (386, 73098), (393, 71796), (524, 53847), (558, 50566), (579, 48732), (772, 36549), (786, 35898), (1116, 25283), (1158, 24366), (1179, 23932), (1572, 17949), (1737, 16244), (2316, 12183), (2358, 11966), (3474, 8122), (4061, 6948), (4716, 5983)]