221870720

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:314

約数の個数: 128

約数和(自身を含む): 560494080

約数和(自身を除く): 338623360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 53, 62, 64, 80, 106, 124, 128, 155, 160, 211, 212, 248, 265, 310, 320, 422, 424, 496, 530, 620, 640, 844, 848, 992, 1055, 1060, 1240, 1643, 1688, 1696, 1984, 2110, 2120, 2480, 3286, 3376, 3392, 3968, 4220, 4240, 4960, 6541, 6572, 6752, 6784, 8215, 8440, 8480, 9920, 11183, 13082, 13144, 13504, 16430, 16880, 16960, 19840, 22366, 26164, 26288, 27008, 32705, 32860, 33760, 33920, 44732, 52328, 52576, 55915, 65410, 65720, 67520, 89464, 104656, 105152, 111830, 130820, 131440, 135040, 178928, 209312, 210304, 223660, 261640, 262880, 346673, 357856, 418624, 447320, 523280, 525760, 693346, 715712, 837248, 894640, 1046560, 1051520, 1386692, 1431424, 1733365, 1789280, 2093120, 2773384, 3466730, 3578560, 4186240, 5546768, 6933460, 7157120, 11093536, 13866920, 22187072, 27733840, 44374144, 55467680, 110935360, 221870720]

約数ペア:

[(1, 221870720), (2, 110935360), (4, 55467680), (5, 44374144), (8, 27733840), (10, 22187072), (16, 13866920), (20, 11093536), (31, 7157120), (32, 6933460), (40, 5546768), (53, 4186240), (62, 3578560), (64, 3466730), (80, 2773384), (106, 2093120), (124, 1789280), (128, 1733365), (155, 1431424), (160, 1386692), (211, 1051520), (212, 1046560), (248, 894640), (265, 837248), (310, 715712), (320, 693346), (422, 525760), (424, 523280), (496, 447320), (530, 418624), (620, 357856), (640, 346673), (844, 262880), (848, 261640), (992, 223660), (1055, 210304), (1060, 209312), (1240, 178928), (1643, 135040), (1688, 131440), (1696, 130820), (1984, 111830), (2110, 105152), (2120, 104656), (2480, 89464), (3286, 67520), (3376, 65720), (3392, 65410), (3968, 55915), (4220, 52576), (4240, 52328), (4960, 44732), (6541, 33920), (6572, 33760), (6752, 32860), (6784, 32705), (8215, 27008), (8440, 26288), (8480, 26164), (9920, 22366), (11183, 19840), (13082, 16960), (13144, 16880), (13504, 16430)]