281550780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{3061}}^1$

素因数の和:3156

約数の個数: 144

約数和(自身を含む): 989736384

約数和(自身を除く): 708185604

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 73, 84, 90, 105, 126, 140, 146, 180, 210, 219, 252, 292, 315, 365, 420, 438, 511, 630, 657, 730, 876, 1022, 1095, 1260, 1314, 1460, 1533, 2044, 2190, 2555, 2628, 3061, 3066, 3285, 4380, 4599, 5110, 6122, 6132, 6570, 7665, 9183, 9198, 10220, 12244, 13140, 15305, 15330, 18366, 18396, 21427, 22995, 27549, 30610, 30660, 36732, 42854, 45915, 45990, 55098, 61220, 64281, 85708, 91830, 91980, 107135, 110196, 128562, 137745, 183660, 192843, 214270, 223453, 257124, 275490, 321405, 385686, 428540, 446906, 550980, 642810, 670359, 771372, 893812, 964215, 1117265, 1285620, 1340718, 1564171, 1928430, 2011077, 2234530, 2681436, 3128342, 3351795, 3856860, 4022154, 4469060, 4692513, 6256684, 6703590, 7820855, 8044308, 9385026, 10055385, 13407180, 14077539, 15641710, 18770052, 20110770, 23462565, 28155078, 31283420, 40221540, 46925130, 56310156, 70387695, 93850260, 140775390, 281550780]

約数ペア:

[(1, 281550780), (2, 140775390), (3, 93850260), (4, 70387695), (5, 56310156), (6, 46925130), (7, 40221540), (9, 31283420), (10, 28155078), (12, 23462565), (14, 20110770), (15, 18770052), (18, 15641710), (20, 14077539), (21, 13407180), (28, 10055385), (30, 9385026), (35, 8044308), (36, 7820855), (42, 6703590), (45, 6256684), (60, 4692513), (63, 4469060), (70, 4022154), (73, 3856860), (84, 3351795), (90, 3128342), (105, 2681436), (126, 2234530), (140, 2011077), (146, 1928430), (180, 1564171), (210, 1340718), (219, 1285620), (252, 1117265), (292, 964215), (315, 893812), (365, 771372), (420, 670359), (438, 642810), (511, 550980), (630, 446906), (657, 428540), (730, 385686), (876, 321405), (1022, 275490), (1095, 257124), (1260, 223453), (1314, 214270), (1460, 192843), (1533, 183660), (2044, 137745), (2190, 128562), (2555, 110196), (2628, 107135), (3061, 91980), (3066, 91830), (3285, 85708), (4380, 64281), (4599, 61220), (5110, 55098), (6122, 45990), (6132, 45915), (6570, 42854), (7665, 36732), (9183, 30660), (9198, 30610), (10220, 27549), (12244, 22995), (13140, 21427), (15305, 18396), (15330, 18366)]