18040140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:160

約数の個数: 144

約数和(自身を含む): 58496256

約数和(自身を除く): 40456116

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 53, 60, 61, 62, 90, 93, 106, 122, 124, 155, 159, 180, 183, 186, 212, 244, 265, 279, 305, 310, 318, 366, 372, 465, 477, 530, 549, 558, 610, 620, 636, 732, 795, 915, 930, 954, 1060, 1098, 1116, 1220, 1395, 1590, 1643, 1830, 1860, 1891, 1908, 2196, 2385, 2745, 2790, 3180, 3233, 3286, 3660, 3782, 4770, 4929, 5490, 5580, 5673, 6466, 6572, 7564, 8215, 9455, 9540, 9699, 9858, 10980, 11346, 12932, 14787, 16165, 16430, 17019, 18910, 19398, 19716, 22692, 24645, 28365, 29097, 29574, 32330, 32860, 34038, 37820, 38796, 48495, 49290, 56730, 58194, 59148, 64660, 68076, 73935, 85095, 96990, 98580, 100223, 113460, 116388, 145485, 147870, 170190, 193980, 200446, 290970, 295740, 300669, 340380, 400892, 501115, 581940, 601338, 902007, 1002230, 1202676, 1503345, 1804014, 2004460, 3006690, 3608028, 4510035, 6013380, 9020070, 18040140]

約数ペア:

[(1, 18040140), (2, 9020070), (3, 6013380), (4, 4510035), (5, 3608028), (6, 3006690), (9, 2004460), (10, 1804014), (12, 1503345), (15, 1202676), (18, 1002230), (20, 902007), (30, 601338), (31, 581940), (36, 501115), (45, 400892), (53, 340380), (60, 300669), (61, 295740), (62, 290970), (90, 200446), (93, 193980), (106, 170190), (122, 147870), (124, 145485), (155, 116388), (159, 113460), (180, 100223), (183, 98580), (186, 96990), (212, 85095), (244, 73935), (265, 68076), (279, 64660), (305, 59148), (310, 58194), (318, 56730), (366, 49290), (372, 48495), (465, 38796), (477, 37820), (530, 34038), (549, 32860), (558, 32330), (610, 29574), (620, 29097), (636, 28365), (732, 24645), (795, 22692), (915, 19716), (930, 19398), (954, 18910), (1060, 17019), (1098, 16430), (1116, 16165), (1220, 14787), (1395, 12932), (1590, 11346), (1643, 10980), (1830, 9858), (1860, 9699), (1891, 9540), (1908, 9455), (2196, 8215), (2385, 7564), (2745, 6572), (2790, 6466), (3180, 5673), (3233, 5580), (3286, 5490), (3660, 4929), (3782, 4770)]