19807320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12697}}^1$

素因数の和:12724

約数の個数: 64

約数和(自身を含む): 63997920

約数和(自身を除く): 44190600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 12697, 25394, 38091, 50788, 63485, 76182, 101576, 126970, 152364, 165061, 190455, 253940, 304728, 330122, 380910, 495183, 507880, 660244, 761820, 825305, 990366, 1320488, 1523640, 1650610, 1980732, 2475915, 3301220, 3961464, 4951830, 6602440, 9903660, 19807320]

約数ペア:

[(1, 19807320), (2, 9903660), (3, 6602440), (4, 4951830), (5, 3961464), (6, 3301220), (8, 2475915), (10, 1980732), (12, 1650610), (13, 1523640), (15, 1320488), (20, 990366), (24, 825305), (26, 761820), (30, 660244), (39, 507880), (40, 495183), (52, 380910), (60, 330122), (65, 304728), (78, 253940), (104, 190455), (120, 165061), (130, 152364), (156, 126970), (195, 101576), (260, 76182), (312, 63485), (390, 50788), (520, 38091), (780, 25394), (1560, 12697)]