61831980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1583}}^1$

素因数の和:1636

約数の個数: 144

約数和(自身を含む): 221405184

約数和(自身を除く): 159573204

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 60, 62, 63, 70, 84, 90, 93, 105, 124, 126, 140, 155, 180, 186, 210, 217, 252, 279, 310, 315, 372, 420, 434, 465, 558, 620, 630, 651, 868, 930, 1085, 1116, 1260, 1302, 1395, 1583, 1860, 1953, 2170, 2604, 2790, 3166, 3255, 3906, 4340, 4749, 5580, 6332, 6510, 7812, 7915, 9498, 9765, 11081, 13020, 14247, 15830, 18996, 19530, 22162, 23745, 28494, 31660, 33243, 39060, 44324, 47490, 49073, 55405, 56988, 66486, 71235, 94980, 98146, 99729, 110810, 132972, 142470, 147219, 166215, 196292, 199458, 221620, 245365, 284940, 294438, 332430, 343511, 398916, 441657, 490730, 498645, 588876, 664860, 687022, 736095, 883314, 981460, 997290, 1030533, 1374044, 1472190, 1717555, 1766628, 1994580, 2061066, 2208285, 2944380, 3091599, 3435110, 4122132, 4416570, 5152665, 6183198, 6870220, 8833140, 10305330, 12366396, 15457995, 20610660, 30915990, 61831980]

約数ペア:

[(1, 61831980), (2, 30915990), (3, 20610660), (4, 15457995), (5, 12366396), (6, 10305330), (7, 8833140), (9, 6870220), (10, 6183198), (12, 5152665), (14, 4416570), (15, 4122132), (18, 3435110), (20, 3091599), (21, 2944380), (28, 2208285), (30, 2061066), (31, 1994580), (35, 1766628), (36, 1717555), (42, 1472190), (45, 1374044), (60, 1030533), (62, 997290), (63, 981460), (70, 883314), (84, 736095), (90, 687022), (93, 664860), (105, 588876), (124, 498645), (126, 490730), (140, 441657), (155, 398916), (180, 343511), (186, 332430), (210, 294438), (217, 284940), (252, 245365), (279, 221620), (310, 199458), (315, 196292), (372, 166215), (420, 147219), (434, 142470), (465, 132972), (558, 110810), (620, 99729), (630, 98146), (651, 94980), (868, 71235), (930, 66486), (1085, 56988), (1116, 55405), (1260, 49073), (1302, 47490), (1395, 44324), (1583, 39060), (1860, 33243), (1953, 31660), (2170, 28494), (2604, 23745), (2790, 22162), (3166, 19530), (3255, 18996), (3906, 15830), (4340, 14247), (4749, 13020), (5580, 11081), (6332, 9765), (6510, 9498), (7812, 7915)]