19917300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5107}}^1$

素因数の和:5137

約数の個数: 72

約数和(自身を含む): 62072416

約数和(自身を除く): 42155116

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 5107, 10214, 15321, 20428, 25535, 30642, 51070, 61284, 66391, 76605, 102140, 127675, 132782, 153210, 199173, 255350, 265564, 306420, 331955, 383025, 398346, 510700, 663910, 766050, 796692, 995865, 1327820, 1532100, 1659775, 1991730, 3319550, 3983460, 4979325, 6639100, 9958650, 19917300]

約数ペア:

[(1, 19917300), (2, 9958650), (3, 6639100), (4, 4979325), (5, 3983460), (6, 3319550), (10, 1991730), (12, 1659775), (13, 1532100), (15, 1327820), (20, 995865), (25, 796692), (26, 766050), (30, 663910), (39, 510700), (50, 398346), (52, 383025), (60, 331955), (65, 306420), (75, 265564), (78, 255350), (100, 199173), (130, 153210), (150, 132782), (156, 127675), (195, 102140), (260, 76605), (300, 66391), (325, 61284), (390, 51070), (650, 30642), (780, 25535), (975, 20428), (1300, 15321), (1950, 10214), (3900, 5107)]