19767280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{229}}^1$

素因数の和:338

約数の個数: 80

約数和(自身を含む): 50309280

約数和(自身を除く): 30542000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 83, 104, 130, 166, 208, 229, 260, 332, 415, 458, 520, 664, 830, 916, 1040, 1079, 1145, 1328, 1660, 1832, 2158, 2290, 2977, 3320, 3664, 4316, 4580, 5395, 5954, 6640, 8632, 9160, 10790, 11908, 14885, 17264, 18320, 19007, 21580, 23816, 29770, 38014, 43160, 47632, 59540, 76028, 86320, 95035, 119080, 152056, 190070, 238160, 247091, 304112, 380140, 494182, 760280, 988364, 1235455, 1520560, 1976728, 2470910, 3953456, 4941820, 9883640, 19767280]

約数ペア:

[(1, 19767280), (2, 9883640), (4, 4941820), (5, 3953456), (8, 2470910), (10, 1976728), (13, 1520560), (16, 1235455), (20, 988364), (26, 760280), (40, 494182), (52, 380140), (65, 304112), (80, 247091), (83, 238160), (104, 190070), (130, 152056), (166, 119080), (208, 95035), (229, 86320), (260, 76028), (332, 59540), (415, 47632), (458, 43160), (520, 38014), (664, 29770), (830, 23816), (916, 21580), (1040, 19007), (1079, 18320), (1145, 17264), (1328, 14885), (1660, 11908), (1832, 10790), (2158, 9160), (2290, 8632), (2977, 6640), (3320, 5954), (3664, 5395), (4316, 4580)]