199949880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{128173}}^1$

素因数の和:128200

約数の個数: 64

約数和(自身を含む): 645996960

約数和(自身を除く): 446047080

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, 128173, 256346, 384519, 512692, 640865, 769038, 1025384, 1281730, 1538076, 1666249, 1922595, 2563460, 3076152, 3332498, 3845190, 4998747, 5126920, 6664996, 7690380, 8331245, 9997494, 13329992, 15380760, 16662490, 19994988, 24993735, 33324980, 39989976, 49987470, 66649960, 99974940, 199949880]

約数ペア:

[(1, 199949880), (2, 99974940), (3, 66649960), (4, 49987470), (5, 39989976), (6, 33324980), (8, 24993735), (10, 19994988), (12, 16662490), (13, 15380760), (15, 13329992), (20, 9997494), (24, 8331245), (26, 7690380), (30, 6664996), (39, 5126920), (40, 4998747), (52, 3845190), (60, 3332498), (65, 3076152), (78, 2563460), (104, 1922595), (120, 1666249), (130, 1538076), (156, 1281730), (195, 1025384), (260, 769038), (312, 640865), (390, 512692), (520, 384519), (780, 256346), (1560, 128173)]