18899920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1069}}^1$

素因数の和:1112

約数の個数: 80

約数和(自身を含む): 50153040

約数和(自身を除く): 31253120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1069, 1105, 1360, 1768, 2138, 2210, 3536, 4276, 4420, 5345, 8552, 8840, 10690, 13897, 17104, 17680, 18173, 21380, 27794, 36346, 42760, 55588, 69485, 72692, 85520, 90865, 111176, 138970, 145384, 181730, 222352, 236249, 277940, 290768, 363460, 472498, 555880, 726920, 944996, 1111760, 1181245, 1453840, 1889992, 2362490, 3779984, 4724980, 9449960, 18899920]

約数ペア:

[(1, 18899920), (2, 9449960), (4, 4724980), (5, 3779984), (8, 2362490), (10, 1889992), (13, 1453840), (16, 1181245), (17, 1111760), (20, 944996), (26, 726920), (34, 555880), (40, 472498), (52, 363460), (65, 290768), (68, 277940), (80, 236249), (85, 222352), (104, 181730), (130, 145384), (136, 138970), (170, 111176), (208, 90865), (221, 85520), (260, 72692), (272, 69485), (340, 55588), (442, 42760), (520, 36346), (680, 27794), (884, 21380), (1040, 18173), (1069, 17680), (1105, 17104), (1360, 13897), (1768, 10690), (2138, 8840), (2210, 8552), (3536, 5345), (4276, 4420)]