420727040

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{461}}^1$

素因数の和:536

約数の個数: 144

約数和(自身を含む): 1087865856

約数和(自身を除く): 667138816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 32, 40, 46, 62, 64, 80, 92, 115, 124, 128, 155, 160, 184, 230, 248, 256, 310, 320, 368, 460, 461, 496, 620, 640, 713, 736, 920, 922, 992, 1240, 1280, 1426, 1472, 1840, 1844, 1984, 2305, 2480, 2852, 2944, 3565, 3680, 3688, 3968, 4610, 4960, 5704, 5888, 7130, 7360, 7376, 7936, 9220, 9920, 10603, 11408, 14260, 14291, 14720, 14752, 18440, 19840, 21206, 22816, 28520, 28582, 29440, 29504, 36880, 39680, 42412, 45632, 53015, 57040, 57164, 59008, 71455, 73760, 84824, 91264, 106030, 114080, 114328, 118016, 142910, 147520, 169648, 182528, 212060, 228160, 228656, 285820, 295040, 328693, 339296, 424120, 456320, 457312, 571640, 590080, 657386, 678592, 848240, 912640, 914624, 1143280, 1314772, 1357184, 1643465, 1696480, 1829248, 2286560, 2629544, 2714368, 3286930, 3392960, 3658496, 4573120, 5259088, 6573860, 6785920, 9146240, 10518176, 13147720, 13571840, 18292480, 21036352, 26295440, 42072704, 52590880, 84145408, 105181760, 210363520, 420727040]

約数ペア:

[(1, 420727040), (2, 210363520), (4, 105181760), (5, 84145408), (8, 52590880), (10, 42072704), (16, 26295440), (20, 21036352), (23, 18292480), (31, 13571840), (32, 13147720), (40, 10518176), (46, 9146240), (62, 6785920), (64, 6573860), (80, 5259088), (92, 4573120), (115, 3658496), (124, 3392960), (128, 3286930), (155, 2714368), (160, 2629544), (184, 2286560), (230, 1829248), (248, 1696480), (256, 1643465), (310, 1357184), (320, 1314772), (368, 1143280), (460, 914624), (461, 912640), (496, 848240), (620, 678592), (640, 657386), (713, 590080), (736, 571640), (920, 457312), (922, 456320), (992, 424120), (1240, 339296), (1280, 328693), (1426, 295040), (1472, 285820), (1840, 228656), (1844, 228160), (1984, 212060), (2305, 182528), (2480, 169648), (2852, 147520), (2944, 142910), (3565, 118016), (3680, 114328), (3688, 114080), (3968, 106030), (4610, 91264), (4960, 84824), (5704, 73760), (5888, 71455), (7130, 59008), (7360, 57164), (7376, 57040), (7936, 53015), (9220, 45632), (9920, 42412), (10603, 39680), (11408, 36880), (14260, 29504), (14291, 29440), (14720, 28582), (14752, 28520), (18440, 22816), (19840, 21206)]