20976920008

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{77621}}^1$

素因数の和:77758

約数の個数: 64

約数和(自身を含む): 44598496320

約数和(自身を除く): 23621576312

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 74, 83, 88, 148, 166, 296, 332, 407, 664, 814, 913, 1628, 1826, 3071, 3256, 3652, 6142, 7304, 12284, 24568, 33781, 67562, 77621, 135124, 155242, 270248, 310484, 620968, 853831, 1707662, 2871977, 3415324, 5743954, 6442543, 6830648, 11487908, 12885086, 22975816, 25770172, 31591747, 51540344, 63183494, 70867973, 126366988, 141735946, 238374091, 252733976, 283471892, 476748182, 566943784, 953496364, 1906992728, 2622115001, 5244230002, 10488460004, 20976920008]

約数ペア:

[(1, 20976920008), (2, 10488460004), (4, 5244230002), (8, 2622115001), (11, 1906992728), (22, 953496364), (37, 566943784), (44, 476748182), (74, 283471892), (83, 252733976), (88, 238374091), (148, 141735946), (166, 126366988), (296, 70867973), (332, 63183494), (407, 51540344), (664, 31591747), (814, 25770172), (913, 22975816), (1628, 12885086), (1826, 11487908), (3071, 6830648), (3256, 6442543), (3652, 5743954), (6142, 3415324), (7304, 2871977), (12284, 1707662), (24568, 853831), (33781, 620968), (67562, 310484), (77621, 270248), (135124, 155242)]