420290560

素因数分解:

$2^{13}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:393

約数の個数: 112

約数和(自身を含む): 1044317952

約数和(自身を除く): 624027392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 331, 496, 512, 620, 640, 662, 992, 1024, 1240, 1280, 1324, 1655, 1984, 2048, 2480, 2560, 2648, 3310, 3968, 4096, 4960, 5120, 5296, 6620, 7936, 8192, 9920, 10240, 10261, 10592, 13240, 15872, 19840, 20480, 20522, 21184, 26480, 31744, 39680, 40960, 41044, 42368, 51305, 52960, 63488, 79360, 82088, 84736, 102610, 105920, 126976, 158720, 164176, 169472, 205220, 211840, 253952, 317440, 328352, 338944, 410440, 423680, 634880, 656704, 677888, 820880, 847360, 1269760, 1313408, 1355776, 1641760, 1694720, 2626816, 2711552, 3283520, 3389440, 5253632, 6567040, 6778880, 10507264, 13134080, 13557760, 21014528, 26268160, 42029056, 52536320, 84058112, 105072640, 210145280, 420290560]

約数ペア:

[(1, 420290560), (2, 210145280), (4, 105072640), (5, 84058112), (8, 52536320), (10, 42029056), (16, 26268160), (20, 21014528), (31, 13557760), (32, 13134080), (40, 10507264), (62, 6778880), (64, 6567040), (80, 5253632), (124, 3389440), (128, 3283520), (155, 2711552), (160, 2626816), (248, 1694720), (256, 1641760), (310, 1355776), (320, 1313408), (331, 1269760), (496, 847360), (512, 820880), (620, 677888), (640, 656704), (662, 634880), (992, 423680), (1024, 410440), (1240, 338944), (1280, 328352), (1324, 317440), (1655, 253952), (1984, 211840), (2048, 205220), (2480, 169472), (2560, 164176), (2648, 158720), (3310, 126976), (3968, 105920), (4096, 102610), (4960, 84736), (5120, 82088), (5296, 79360), (6620, 63488), (7936, 52960), (8192, 51305), (9920, 42368), (10240, 41044), (10261, 40960), (10592, 39680), (13240, 31744), (15872, 26480), (19840, 21184), (20480, 20522)]