318273280

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{617}}^1$

素因数の和:682

約数の個数: 144

約数和(自身を含む): 848865024

約数和(自身を除く): 530591744

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 256, 260, 310, 320, 403, 416, 496, 520, 617, 620, 640, 806, 832, 992, 1040, 1234, 1240, 1280, 1612, 1664, 1984, 2015, 2080, 2468, 2480, 3085, 3224, 3328, 3968, 4030, 4160, 4936, 4960, 6170, 6448, 7936, 8021, 8060, 8320, 9872, 9920, 12340, 12896, 16042, 16120, 16640, 19127, 19744, 19840, 24680, 25792, 32084, 32240, 38254, 39488, 39680, 40105, 49360, 51584, 64168, 64480, 76508, 78976, 80210, 95635, 98720, 103168, 128336, 128960, 153016, 157952, 160420, 191270, 197440, 248651, 256672, 257920, 306032, 320840, 382540, 394880, 497302, 513344, 515840, 612064, 641680, 765080, 789760, 994604, 1026688, 1224128, 1243255, 1283360, 1530160, 1989208, 2053376, 2448256, 2486510, 2566720, 3060320, 3978416, 4896512, 4973020, 5133440, 6120640, 7956832, 9946040, 10266880, 12241280, 15913664, 19892080, 24482560, 31827328, 39784160, 63654656, 79568320, 159136640, 318273280]

約数ペア:

[(1, 318273280), (2, 159136640), (4, 79568320), (5, 63654656), (8, 39784160), (10, 31827328), (13, 24482560), (16, 19892080), (20, 15913664), (26, 12241280), (31, 10266880), (32, 9946040), (40, 7956832), (52, 6120640), (62, 5133440), (64, 4973020), (65, 4896512), (80, 3978416), (104, 3060320), (124, 2566720), (128, 2486510), (130, 2448256), (155, 2053376), (160, 1989208), (208, 1530160), (248, 1283360), (256, 1243255), (260, 1224128), (310, 1026688), (320, 994604), (403, 789760), (416, 765080), (496, 641680), (520, 612064), (617, 515840), (620, 513344), (640, 497302), (806, 394880), (832, 382540), (992, 320840), (1040, 306032), (1234, 257920), (1240, 256672), (1280, 248651), (1612, 197440), (1664, 191270), (1984, 160420), (2015, 157952), (2080, 153016), (2468, 128960), (2480, 128336), (3085, 103168), (3224, 98720), (3328, 95635), (3968, 80210), (4030, 78976), (4160, 76508), (4936, 64480), (4960, 64168), (6170, 51584), (6448, 49360), (7936, 40105), (8021, 39680), (8060, 39488), (8320, 38254), (9872, 32240), (9920, 32084), (12340, 25792), (12896, 24680), (16042, 19840), (16120, 19744), (16640, 19127)]