21246560

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{241}}^1$

素因数の和:304

約数の個数: 96

約数和(自身を含む): 54885600

約数和(自身を除く): 33639040

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 32, 38, 40, 58, 76, 80, 95, 116, 145, 152, 160, 190, 232, 241, 290, 304, 380, 464, 482, 551, 580, 608, 760, 928, 964, 1102, 1160, 1205, 1520, 1928, 2204, 2320, 2410, 2755, 3040, 3856, 4408, 4579, 4640, 4820, 5510, 6989, 7712, 8816, 9158, 9640, 11020, 13978, 17632, 18316, 19280, 22040, 22895, 27956, 34945, 36632, 38560, 44080, 45790, 55912, 69890, 73264, 88160, 91580, 111824, 132791, 139780, 146528, 183160, 223648, 265582, 279560, 366320, 531164, 559120, 663955, 732640, 1062328, 1118240, 1327910, 2124656, 2655820, 4249312, 5311640, 10623280, 21246560]

約数ペア:

[(1, 21246560), (2, 10623280), (4, 5311640), (5, 4249312), (8, 2655820), (10, 2124656), (16, 1327910), (19, 1118240), (20, 1062328), (29, 732640), (32, 663955), (38, 559120), (40, 531164), (58, 366320), (76, 279560), (80, 265582), (95, 223648), (116, 183160), (145, 146528), (152, 139780), (160, 132791), (190, 111824), (232, 91580), (241, 88160), (290, 73264), (304, 69890), (380, 55912), (464, 45790), (482, 44080), (551, 38560), (580, 36632), (608, 34945), (760, 27956), (928, 22895), (964, 22040), (1102, 19280), (1160, 18316), (1205, 17632), (1520, 13978), (1928, 11020), (2204, 9640), (2320, 9158), (2410, 8816), (2755, 7712), (3040, 6989), (3856, 5510), (4408, 4820), (4579, 4640)]