642378828

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4423}}^1$

素因数の和:4476

約数の個数: 144

約数和(自身を含む): 1976997120

約数和(自身を除く): 1334618292

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 19, 21, 26, 28, 38, 39, 42, 49, 52, 57, 76, 78, 84, 91, 98, 114, 133, 147, 156, 182, 196, 228, 247, 266, 273, 294, 364, 399, 494, 532, 546, 588, 637, 741, 798, 931, 988, 1092, 1274, 1482, 1596, 1729, 1862, 1911, 2548, 2793, 2964, 3458, 3724, 3822, 4423, 5187, 5586, 6916, 7644, 8846, 10374, 11172, 12103, 13269, 17692, 20748, 24206, 26538, 30961, 36309, 48412, 53076, 57499, 61922, 72618, 84037, 92883, 114998, 123844, 145236, 168074, 172497, 185766, 216727, 229996, 252111, 336148, 344994, 371532, 402493, 433454, 504222, 588259, 650181, 689988, 804986, 866908, 1008444, 1092481, 1176518, 1207479, 1300362, 1609972, 1764777, 2184962, 2353036, 2414958, 2600724, 2817451, 3277443, 3529554, 4117813, 4369924, 4829916, 5634902, 6554886, 7059108, 7647367, 8235626, 8452353, 11269804, 12353439, 13109772, 15294734, 16471252, 16904706, 22942101, 24706878, 30589468, 33809412, 45884202, 49413756, 53531569, 91768404, 107063138, 160594707, 214126276, 321189414, 642378828]

約数ペア:

[(1, 642378828), (2, 321189414), (3, 214126276), (4, 160594707), (6, 107063138), (7, 91768404), (12, 53531569), (13, 49413756), (14, 45884202), (19, 33809412), (21, 30589468), (26, 24706878), (28, 22942101), (38, 16904706), (39, 16471252), (42, 15294734), (49, 13109772), (52, 12353439), (57, 11269804), (76, 8452353), (78, 8235626), (84, 7647367), (91, 7059108), (98, 6554886), (114, 5634902), (133, 4829916), (147, 4369924), (156, 4117813), (182, 3529554), (196, 3277443), (228, 2817451), (247, 2600724), (266, 2414958), (273, 2353036), (294, 2184962), (364, 1764777), (399, 1609972), (494, 1300362), (532, 1207479), (546, 1176518), (588, 1092481), (637, 1008444), (741, 866908), (798, 804986), (931, 689988), (988, 650181), (1092, 588259), (1274, 504222), (1482, 433454), (1596, 402493), (1729, 371532), (1862, 344994), (1911, 336148), (2548, 252111), (2793, 229996), (2964, 216727), (3458, 185766), (3724, 172497), (3822, 168074), (4423, 145236), (5187, 123844), (5586, 114998), (6916, 92883), (7644, 84037), (8846, 72618), (10374, 61922), (11172, 57499), (12103, 53076), (13269, 48412), (17692, 36309), (20748, 30961), (24206, 26538)]