18493980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:267

約数の個数: 96

約数和(自身を含む): 54663168

約数和(自身を除く): 36169188

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 61, 62, 93, 122, 124, 155, 163, 183, 186, 244, 305, 310, 326, 366, 372, 465, 489, 610, 620, 652, 732, 815, 915, 930, 978, 1220, 1630, 1830, 1860, 1891, 1956, 2445, 3260, 3660, 3782, 4890, 5053, 5673, 7564, 9455, 9780, 9943, 10106, 11346, 15159, 18910, 19886, 20212, 22692, 25265, 28365, 29829, 30318, 37820, 39772, 49715, 50530, 56730, 59658, 60636, 75795, 99430, 101060, 113460, 119316, 149145, 151590, 198860, 298290, 303180, 308233, 596580, 616466, 924699, 1232932, 1541165, 1849398, 3082330, 3698796, 4623495, 6164660, 9246990, 18493980]

約数ペア:

[(1, 18493980), (2, 9246990), (3, 6164660), (4, 4623495), (5, 3698796), (6, 3082330), (10, 1849398), (12, 1541165), (15, 1232932), (20, 924699), (30, 616466), (31, 596580), (60, 308233), (61, 303180), (62, 298290), (93, 198860), (122, 151590), (124, 149145), (155, 119316), (163, 113460), (183, 101060), (186, 99430), (244, 75795), (305, 60636), (310, 59658), (326, 56730), (366, 50530), (372, 49715), (465, 39772), (489, 37820), (610, 30318), (620, 29829), (652, 28365), (732, 25265), (815, 22692), (915, 20212), (930, 19886), (978, 18910), (1220, 15159), (1630, 11346), (1830, 10106), (1860, 9943), (1891, 9780), (1956, 9455), (2445, 7564), (3260, 5673), (3660, 5053), (3782, 4890)]