19877850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{163}}^1\times {\mathrm{271}}^1$

素因数の和:452

約数の個数: 72

約数和(自身を含む): 53931072

約数和(自身を除く): 34053222

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 163, 225, 271, 326, 450, 489, 542, 813, 815, 978, 1355, 1467, 1626, 1630, 2439, 2445, 2710, 2934, 4065, 4075, 4878, 4890, 6775, 7335, 8130, 8150, 12195, 12225, 13550, 14670, 20325, 24390, 24450, 36675, 40650, 44173, 60975, 73350, 88346, 121950, 132519, 220865, 265038, 397557, 441730, 662595, 795114, 1104325, 1325190, 1987785, 2208650, 3312975, 3975570, 6625950, 9938925, 19877850]

約数ペア:

[(1, 19877850), (2, 9938925), (3, 6625950), (5, 3975570), (6, 3312975), (9, 2208650), (10, 1987785), (15, 1325190), (18, 1104325), (25, 795114), (30, 662595), (45, 441730), (50, 397557), (75, 265038), (90, 220865), (150, 132519), (163, 121950), (225, 88346), (271, 73350), (326, 60975), (450, 44173), (489, 40650), (542, 36675), (813, 24450), (815, 24390), (978, 20325), (1355, 14670), (1467, 13550), (1626, 12225), (1630, 12195), (2439, 8150), (2445, 8130), (2710, 7335), (2934, 6775), (4065, 4890), (4075, 4878)]