420505280

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{373}}^1$

素因数の和:674

約数の個数: 112

約数和(自身を含む): 1085234304

約数和(自身を除く): 664729024

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 271, 320, 373, 416, 520, 542, 746, 832, 1040, 1084, 1355, 1492, 1865, 2080, 2168, 2710, 2984, 3523, 3730, 4160, 4336, 4849, 5420, 5968, 7046, 7460, 8672, 9698, 10840, 11936, 14092, 14920, 17344, 17615, 19396, 21680, 23872, 24245, 28184, 29840, 35230, 38792, 43360, 48490, 56368, 59680, 70460, 77584, 86720, 96980, 101083, 112736, 119360, 140920, 155168, 193960, 202166, 225472, 281840, 310336, 387920, 404332, 505415, 563680, 775840, 808664, 1010830, 1127360, 1314079, 1551680, 1617328, 2021660, 2628158, 3234656, 4043320, 5256316, 6469312, 6570395, 8086640, 10512632, 13140790, 16173280, 21025264, 26281580, 32346560, 42050528, 52563160, 84101056, 105126320, 210252640, 420505280]

約数ペア:

[(1, 420505280), (2, 210252640), (4, 105126320), (5, 84101056), (8, 52563160), (10, 42050528), (13, 32346560), (16, 26281580), (20, 21025264), (26, 16173280), (32, 13140790), (40, 10512632), (52, 8086640), (64, 6570395), (65, 6469312), (80, 5256316), (104, 4043320), (130, 3234656), (160, 2628158), (208, 2021660), (260, 1617328), (271, 1551680), (320, 1314079), (373, 1127360), (416, 1010830), (520, 808664), (542, 775840), (746, 563680), (832, 505415), (1040, 404332), (1084, 387920), (1355, 310336), (1492, 281840), (1865, 225472), (2080, 202166), (2168, 193960), (2710, 155168), (2984, 140920), (3523, 119360), (3730, 112736), (4160, 101083), (4336, 96980), (4849, 86720), (5420, 77584), (5968, 70460), (7046, 59680), (7460, 56368), (8672, 48490), (9698, 43360), (10840, 38792), (11936, 35230), (14092, 29840), (14920, 28184), (17344, 24245), (17615, 23872), (19396, 21680)]