61153720

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1$

素因数の和:496

約数の個数: 64

約数和(自身を含む): 142223040

約数和(自身を除く): 81069320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 71, 122, 142, 244, 284, 305, 353, 355, 488, 568, 610, 706, 710, 1220, 1412, 1420, 1765, 2440, 2824, 2840, 3530, 4331, 7060, 8662, 14120, 17324, 21533, 21655, 25063, 34648, 43066, 43310, 50126, 86132, 86620, 100252, 107665, 125315, 172264, 173240, 200504, 215330, 250630, 430660, 501260, 861320, 1002520, 1528843, 3057686, 6115372, 7644215, 12230744, 15288430, 30576860, 61153720]

約数ペア:

[(1, 61153720), (2, 30576860), (4, 15288430), (5, 12230744), (8, 7644215), (10, 6115372), (20, 3057686), (40, 1528843), (61, 1002520), (71, 861320), (122, 501260), (142, 430660), (244, 250630), (284, 215330), (305, 200504), (353, 173240), (355, 172264), (488, 125315), (568, 107665), (610, 100252), (706, 86620), (710, 86132), (1220, 50126), (1412, 43310), (1420, 43066), (1765, 34648), (2440, 25063), (2824, 21655), (2840, 21533), (3530, 17324), (4331, 14120), (7060, 8662)]