21819040

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:182

約数の個数: 96

約数和(自身を含む): 54867456

約数和(自身を除く): 33048416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 53, 62, 80, 83, 106, 124, 155, 160, 166, 212, 248, 265, 310, 332, 415, 424, 496, 530, 620, 664, 830, 848, 992, 1060, 1240, 1328, 1643, 1660, 1696, 2120, 2480, 2573, 2656, 3286, 3320, 4240, 4399, 4960, 5146, 6572, 6640, 8215, 8480, 8798, 10292, 12865, 13144, 13280, 16430, 17596, 20584, 21995, 25730, 26288, 32860, 35192, 41168, 43990, 51460, 52576, 65720, 70384, 82336, 87980, 102920, 131440, 136369, 140768, 175960, 205840, 262880, 272738, 351920, 411680, 545476, 681845, 703840, 1090952, 1363690, 2181904, 2727380, 4363808, 5454760, 10909520, 21819040]

約数ペア:

[(1, 21819040), (2, 10909520), (4, 5454760), (5, 4363808), (8, 2727380), (10, 2181904), (16, 1363690), (20, 1090952), (31, 703840), (32, 681845), (40, 545476), (53, 411680), (62, 351920), (80, 272738), (83, 262880), (106, 205840), (124, 175960), (155, 140768), (160, 136369), (166, 131440), (212, 102920), (248, 87980), (265, 82336), (310, 70384), (332, 65720), (415, 52576), (424, 51460), (496, 43990), (530, 41168), (620, 35192), (664, 32860), (830, 26288), (848, 25730), (992, 21995), (1060, 20584), (1240, 17596), (1328, 16430), (1643, 13280), (1660, 13144), (1696, 12865), (2120, 10292), (2480, 8798), (2573, 8480), (2656, 8215), (3286, 6640), (3320, 6572), (4240, 5146), (4399, 4960)]