81142190

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:317

約数の個数: 64

約数和(自身を含む): 162362880

約数和(自身を除く): 81220690

約数列:

[1, 2, 5, 10, 17, 31, 34, 62, 85, 89, 155, 170, 173, 178, 310, 346, 445, 527, 865, 890, 1054, 1513, 1730, 2635, 2759, 2941, 3026, 5270, 5363, 5518, 5882, 7565, 10726, 13795, 14705, 15130, 15397, 26815, 27590, 29410, 30794, 46903, 53630, 76985, 91171, 93806, 153970, 182342, 234515, 261749, 455855, 469030, 477307, 523498, 911710, 954614, 1308745, 2386535, 2617490, 4773070, 8114219, 16228438, 40571095, 81142190]

約数ペア:

[(1, 81142190), (2, 40571095), (5, 16228438), (10, 8114219), (17, 4773070), (31, 2617490), (34, 2386535), (62, 1308745), (85, 954614), (89, 911710), (155, 523498), (170, 477307), (173, 469030), (178, 455855), (310, 261749), (346, 234515), (445, 182342), (527, 153970), (865, 93806), (890, 91171), (1054, 76985), (1513, 53630), (1730, 46903), (2635, 30794), (2759, 29410), (2941, 27590), (3026, 26815), (5270, 15397), (5363, 15130), (5518, 14705), (5882, 13795), (7565, 10726)]