20864550

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{641}}^1$

素因数の和:694

約数の個数: 96

約数和(自身を含む): 61138944

約数和(自身を除く): 40274394

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 31, 35, 42, 50, 62, 70, 75, 93, 105, 150, 155, 175, 186, 210, 217, 310, 350, 434, 465, 525, 641, 651, 775, 930, 1050, 1085, 1282, 1302, 1550, 1923, 2170, 2325, 3205, 3255, 3846, 4487, 4650, 5425, 6410, 6510, 8974, 9615, 10850, 13461, 16025, 16275, 19230, 19871, 22435, 26922, 32050, 32550, 39742, 44870, 48075, 59613, 67305, 96150, 99355, 112175, 119226, 134610, 139097, 198710, 224350, 278194, 298065, 336525, 417291, 496775, 596130, 673050, 695485, 834582, 993550, 1390970, 1490325, 2086455, 2980650, 3477425, 4172910, 6954850, 10432275, 20864550]

約数ペア:

[(1, 20864550), (2, 10432275), (3, 6954850), (5, 4172910), (6, 3477425), (7, 2980650), (10, 2086455), (14, 1490325), (15, 1390970), (21, 993550), (25, 834582), (30, 695485), (31, 673050), (35, 596130), (42, 496775), (50, 417291), (62, 336525), (70, 298065), (75, 278194), (93, 224350), (105, 198710), (150, 139097), (155, 134610), (175, 119226), (186, 112175), (210, 99355), (217, 96150), (310, 67305), (350, 59613), (434, 48075), (465, 44870), (525, 39742), (641, 32550), (651, 32050), (775, 26922), (930, 22435), (1050, 19871), (1085, 19230), (1282, 16275), (1302, 16025), (1550, 13461), (1923, 10850), (2170, 9615), (2325, 8974), (3205, 6510), (3255, 6410), (3846, 5425), (4487, 4650)]