645882948

素因数分解:

$2^2\times 3^2\times {\mathrm{67}}^1\times {\mathrm{331}}^1\times {\mathrm{809}}^1$

素因数の和:1217

約数の個数: 72

約数和(自身を含む): 1664076960

約数和(自身を除く): 1018194012

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 67, 134, 201, 268, 331, 402, 603, 662, 804, 809, 993, 1206, 1324, 1618, 1986, 2412, 2427, 2979, 3236, 3972, 4854, 5958, 7281, 9708, 11916, 14562, 22177, 29124, 44354, 54203, 66531, 88708, 108406, 133062, 162609, 199593, 216812, 266124, 267779, 325218, 399186, 487827, 535558, 650436, 798372, 803337, 975654, 1071116, 1606674, 1951308, 2410011, 3213348, 4820022, 9640044, 17941193, 35882386, 53823579, 71764772, 107647158, 161470737, 215294316, 322941474, 645882948]

約数ペア:

[(1, 645882948), (2, 322941474), (3, 215294316), (4, 161470737), (6, 107647158), (9, 71764772), (12, 53823579), (18, 35882386), (36, 17941193), (67, 9640044), (134, 4820022), (201, 3213348), (268, 2410011), (331, 1951308), (402, 1606674), (603, 1071116), (662, 975654), (804, 803337), (809, 798372), (993, 650436), (1206, 535558), (1324, 487827), (1618, 399186), (1986, 325218), (2412, 267779), (2427, 266124), (2979, 216812), (3236, 199593), (3972, 162609), (4854, 133062), (5958, 108406), (7281, 88708), (9708, 66531), (11916, 54203), (14562, 44354), (22177, 29124)]