388090240

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^2\times {\mathrm{631}}^1$

素因数の和:712

約数の個数: 96

約数和(自身を含む): 960191280

約数和(自身を除く): 572101040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 631, 640, 961, 992, 1240, 1262, 1922, 1984, 2480, 2524, 3155, 3844, 3968, 4805, 4960, 5048, 6310, 7688, 9610, 9920, 10096, 12620, 15376, 19220, 19561, 19840, 20192, 25240, 30752, 38440, 39122, 40384, 50480, 61504, 76880, 78244, 80768, 97805, 100960, 123008, 153760, 156488, 195610, 201920, 307520, 312976, 391220, 403840, 606391, 615040, 625952, 782440, 1212782, 1251904, 1564880, 2425564, 2503808, 3031955, 3129760, 4851128, 6063910, 6259520, 9702256, 12127820, 12519040, 19404512, 24255640, 38809024, 48511280, 77618048, 97022560, 194045120, 388090240]

約数ペア:

[(1, 388090240), (2, 194045120), (4, 97022560), (5, 77618048), (8, 48511280), (10, 38809024), (16, 24255640), (20, 19404512), (31, 12519040), (32, 12127820), (40, 9702256), (62, 6259520), (64, 6063910), (80, 4851128), (124, 3129760), (128, 3031955), (155, 2503808), (160, 2425564), (248, 1564880), (310, 1251904), (320, 1212782), (496, 782440), (620, 625952), (631, 615040), (640, 606391), (961, 403840), (992, 391220), (1240, 312976), (1262, 307520), (1922, 201920), (1984, 195610), (2480, 156488), (2524, 153760), (3155, 123008), (3844, 100960), (3968, 97805), (4805, 80768), (4960, 78244), (5048, 76880), (6310, 61504), (7688, 50480), (9610, 40384), (9920, 39122), (10096, 38440), (12620, 30752), (15376, 25240), (19220, 20192), (19561, 19840)]