15663400880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{145139}}^1$

素因数の和:145242

約数の個数: 80

約数和(自身を含む): 38874297600

約数和(自身を除く): 23210896720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 71, 76, 80, 95, 142, 152, 190, 284, 304, 355, 380, 568, 710, 760, 1136, 1349, 1420, 1520, 2698, 2840, 5396, 5680, 6745, 10792, 13490, 21584, 26980, 53960, 107920, 145139, 290278, 580556, 725695, 1161112, 1451390, 2322224, 2757641, 2902780, 5515282, 5805560, 10304869, 11030564, 11611120, 13788205, 20609738, 22061128, 27576410, 41219476, 44122256, 51524345, 55152820, 82438952, 103048690, 110305640, 164877904, 195792511, 206097380, 220611280, 391585022, 412194760, 783170044, 824389520, 978962555, 1566340088, 1957925110, 3132680176, 3915850220, 7831700440, 15663400880]

約数ペア:

[(1, 15663400880), (2, 7831700440), (4, 3915850220), (5, 3132680176), (8, 1957925110), (10, 1566340088), (16, 978962555), (19, 824389520), (20, 783170044), (38, 412194760), (40, 391585022), (71, 220611280), (76, 206097380), (80, 195792511), (95, 164877904), (142, 110305640), (152, 103048690), (190, 82438952), (284, 55152820), (304, 51524345), (355, 44122256), (380, 41219476), (568, 27576410), (710, 22061128), (760, 20609738), (1136, 13788205), (1349, 11611120), (1420, 11030564), (1520, 10304869), (2698, 5805560), (2840, 5515282), (5396, 2902780), (5680, 2757641), (6745, 2322224), (10792, 1451390), (13490, 1161112), (21584, 725695), (26980, 580556), (53960, 290278), (107920, 145139)]