71278785

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:252

約数の個数: 80

約数和(自身を含む): 137649600

約数和(自身を除く): 66370815

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 59, 81, 95, 135, 157, 171, 177, 285, 295, 405, 471, 513, 531, 785, 855, 885, 1121, 1413, 1539, 1593, 2355, 2565, 2655, 2983, 3363, 4239, 4779, 5605, 7065, 7695, 7965, 8949, 9263, 10089, 12717, 14915, 16815, 21195, 23895, 26847, 27789, 30267, 44745, 46315, 50445, 63585, 80541, 83367, 90801, 134235, 138945, 151335, 175997, 241623, 250101, 402705, 416835, 454005, 527991, 750303, 879985, 1208115, 1250505, 1583973, 2639955, 3751515, 4751919, 7919865, 14255757, 23759595, 71278785]

約数ペア:

[(1, 71278785), (3, 23759595), (5, 14255757), (9, 7919865), (15, 4751919), (19, 3751515), (27, 2639955), (45, 1583973), (57, 1250505), (59, 1208115), (81, 879985), (95, 750303), (135, 527991), (157, 454005), (171, 416835), (177, 402705), (285, 250101), (295, 241623), (405, 175997), (471, 151335), (513, 138945), (531, 134235), (785, 90801), (855, 83367), (885, 80541), (1121, 63585), (1413, 50445), (1539, 46315), (1593, 44745), (2355, 30267), (2565, 27789), (2655, 26847), (2983, 23895), (3363, 21195), (4239, 16815), (4779, 14915), (5605, 12717), (7065, 10089), (7695, 9263), (7965, 8949)]