20004831340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{130631}}^1$

素因数の和:130703

約数の個数: 96

約数和(自身を含む): 49159434240

約数和(自身を除く): 29154602900

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 31, 38, 52, 62, 65, 76, 95, 124, 130, 155, 190, 247, 260, 310, 380, 403, 494, 589, 620, 806, 988, 1178, 1235, 1612, 2015, 2356, 2470, 2945, 4030, 4940, 5890, 7657, 8060, 11780, 15314, 30628, 38285, 76570, 130631, 153140, 261262, 522524, 653155, 1306310, 1698203, 2481989, 2612620, 3396406, 4049561, 4963978, 6792812, 8099122, 8491015, 9927956, 12409945, 16198244, 16982030, 20247805, 24819890, 32265857, 33964060, 40495610, 49639780, 52644293, 64531714, 76941659, 80991220, 105288586, 129063428, 153883318, 161329285, 210577172, 263221465, 307766636, 322658570, 384708295, 526442930, 645317140, 769416590, 1000241567, 1052885860, 1538833180, 2000483134, 4000966268, 5001207835, 10002415670, 20004831340]

約数ペア:

[(1, 20004831340), (2, 10002415670), (4, 5001207835), (5, 4000966268), (10, 2000483134), (13, 1538833180), (19, 1052885860), (20, 1000241567), (26, 769416590), (31, 645317140), (38, 526442930), (52, 384708295), (62, 322658570), (65, 307766636), (76, 263221465), (95, 210577172), (124, 161329285), (130, 153883318), (155, 129063428), (190, 105288586), (247, 80991220), (260, 76941659), (310, 64531714), (380, 52644293), (403, 49639780), (494, 40495610), (589, 33964060), (620, 32265857), (806, 24819890), (988, 20247805), (1178, 16982030), (1235, 16198244), (1612, 12409945), (2015, 9927956), (2356, 8491015), (2470, 8099122), (2945, 6792812), (4030, 4963978), (4940, 4049561), (5890, 3396406), (7657, 2612620), (8060, 2481989), (11780, 1698203), (15314, 1306310), (30628, 653155), (38285, 522524), (76570, 261262), (130631, 153140)]