81830340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{337}}^1$

素因数の和:442

約数の個数: 144

約数和(自身を含む): 265749120

約数和(自身を除く): 183918780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 71, 76, 90, 95, 114, 142, 171, 180, 190, 213, 228, 284, 285, 337, 342, 355, 380, 426, 570, 639, 674, 684, 710, 852, 855, 1011, 1065, 1140, 1278, 1348, 1349, 1420, 1685, 1710, 2022, 2130, 2556, 2698, 3033, 3195, 3370, 3420, 4044, 4047, 4260, 5055, 5396, 6066, 6390, 6403, 6740, 6745, 8094, 10110, 12132, 12141, 12780, 12806, 13490, 15165, 16188, 19209, 20220, 20235, 23927, 24282, 25612, 26980, 30330, 32015, 38418, 40470, 47854, 48564, 57627, 60660, 60705, 64030, 71781, 76836, 80940, 95708, 96045, 115254, 119635, 121410, 128060, 143562, 192090, 215343, 230508, 239270, 242820, 287124, 288135, 358905, 384180, 430686, 454613, 478540, 576270, 717810, 861372, 909226, 1076715, 1152540, 1363839, 1435620, 1818452, 2153430, 2273065, 2727678, 4091517, 4306860, 4546130, 5455356, 6819195, 8183034, 9092260, 13638390, 16366068, 20457585, 27276780, 40915170, 81830340]

約数ペア:

[(1, 81830340), (2, 40915170), (3, 27276780), (4, 20457585), (5, 16366068), (6, 13638390), (9, 9092260), (10, 8183034), (12, 6819195), (15, 5455356), (18, 4546130), (19, 4306860), (20, 4091517), (30, 2727678), (36, 2273065), (38, 2153430), (45, 1818452), (57, 1435620), (60, 1363839), (71, 1152540), (76, 1076715), (90, 909226), (95, 861372), (114, 717810), (142, 576270), (171, 478540), (180, 454613), (190, 430686), (213, 384180), (228, 358905), (284, 288135), (285, 287124), (337, 242820), (342, 239270), (355, 230508), (380, 215343), (426, 192090), (570, 143562), (639, 128060), (674, 121410), (684, 119635), (710, 115254), (852, 96045), (855, 95708), (1011, 80940), (1065, 76836), (1140, 71781), (1278, 64030), (1348, 60705), (1349, 60660), (1420, 57627), (1685, 48564), (1710, 47854), (2022, 40470), (2130, 38418), (2556, 32015), (2698, 30330), (3033, 26980), (3195, 25612), (3370, 24282), (3420, 23927), (4044, 20235), (4047, 20220), (4260, 19209), (5055, 16188), (5396, 15165), (6066, 13490), (6390, 12806), (6403, 12780), (6740, 12141), (6745, 12132), (8094, 10110)]