21901680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1601}}^1$

素因数の和:1639

約数の個数: 120

約数和(自身を含む): 77472720

約数和(自身を除く): 55571040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 114, 120, 144, 152, 171, 180, 190, 228, 240, 285, 304, 342, 360, 380, 456, 570, 684, 720, 760, 855, 912, 1140, 1368, 1520, 1601, 1710, 2280, 2736, 3202, 3420, 4560, 4803, 6404, 6840, 8005, 9606, 12808, 13680, 14409, 16010, 19212, 24015, 25616, 28818, 30419, 32020, 38424, 48030, 57636, 60838, 64040, 72045, 76848, 91257, 96060, 115272, 121676, 128080, 144090, 152095, 182514, 192120, 230544, 243352, 273771, 288180, 304190, 365028, 384240, 456285, 486704, 547542, 576360, 608380, 730056, 912570, 1095084, 1152720, 1216760, 1368855, 1460112, 1825140, 2190168, 2433520, 2737710, 3650280, 4380336, 5475420, 7300560, 10950840, 21901680]

約数ペア:

[(1, 21901680), (2, 10950840), (3, 7300560), (4, 5475420), (5, 4380336), (6, 3650280), (8, 2737710), (9, 2433520), (10, 2190168), (12, 1825140), (15, 1460112), (16, 1368855), (18, 1216760), (19, 1152720), (20, 1095084), (24, 912570), (30, 730056), (36, 608380), (38, 576360), (40, 547542), (45, 486704), (48, 456285), (57, 384240), (60, 365028), (72, 304190), (76, 288180), (80, 273771), (90, 243352), (95, 230544), (114, 192120), (120, 182514), (144, 152095), (152, 144090), (171, 128080), (180, 121676), (190, 115272), (228, 96060), (240, 91257), (285, 76848), (304, 72045), (342, 64040), (360, 60838), (380, 57636), (456, 48030), (570, 38424), (684, 32020), (720, 30419), (760, 28818), (855, 25616), (912, 24015), (1140, 19212), (1368, 16010), (1520, 14409), (1601, 13680), (1710, 12808), (2280, 9606), (2736, 8005), (3202, 6840), (3420, 6404), (4560, 4803)]