20974290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1187}}^1$

素因数の和:1247

約数の個数: 64

約数和(自身を含む): 54743040

約数和(自身を除く): 33768750

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 31, 38, 57, 62, 93, 95, 114, 155, 186, 190, 285, 310, 465, 570, 589, 930, 1178, 1187, 1767, 2374, 2945, 3534, 3561, 5890, 5935, 7122, 8835, 11870, 17670, 17805, 22553, 35610, 36797, 45106, 67659, 73594, 110391, 112765, 135318, 183985, 220782, 225530, 338295, 367970, 551955, 676590, 699143, 1103910, 1398286, 2097429, 3495715, 4194858, 6991430, 10487145, 20974290]

約数ペア:

[(1, 20974290), (2, 10487145), (3, 6991430), (5, 4194858), (6, 3495715), (10, 2097429), (15, 1398286), (19, 1103910), (30, 699143), (31, 676590), (38, 551955), (57, 367970), (62, 338295), (93, 225530), (95, 220782), (114, 183985), (155, 135318), (186, 112765), (190, 110391), (285, 73594), (310, 67659), (465, 45106), (570, 36797), (589, 35610), (930, 22553), (1178, 17805), (1187, 17670), (1767, 11870), (2374, 8835), (2945, 7122), (3534, 5935), (3561, 5890)]