19129890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{271}}^1$

素因数の和:475

約数の個数: 64

約数和(自身を含む): 49900032

約数和(自身を除く): 30770142

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 181, 195, 271, 362, 390, 542, 543, 813, 905, 1086, 1355, 1626, 1810, 2353, 2710, 2715, 3523, 4065, 4706, 5430, 7046, 7059, 8130, 10569, 11765, 14118, 17615, 21138, 23530, 35230, 35295, 49051, 52845, 70590, 98102, 105690, 147153, 245255, 294306, 490510, 637663, 735765, 1275326, 1471530, 1912989, 3188315, 3825978, 6376630, 9564945, 19129890]

約数ペア:

[(1, 19129890), (2, 9564945), (3, 6376630), (5, 3825978), (6, 3188315), (10, 1912989), (13, 1471530), (15, 1275326), (26, 735765), (30, 637663), (39, 490510), (65, 294306), (78, 245255), (130, 147153), (181, 105690), (195, 98102), (271, 70590), (362, 52845), (390, 49051), (542, 35295), (543, 35230), (813, 23530), (905, 21138), (1086, 17615), (1355, 14118), (1626, 11765), (1810, 10569), (2353, 8130), (2710, 7059), (2715, 7046), (3523, 5430), (4065, 4706)]