80515996

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:227

約数の個数: 72

約数和(自身を含む): 167828976

約数和(自身を除く): 87312980

約数列:

[1, 2, 4, 11, 19, 22, 37, 38, 44, 74, 76, 137, 148, 209, 274, 361, 407, 418, 548, 703, 722, 814, 836, 1406, 1444, 1507, 1628, 2603, 2812, 3014, 3971, 5069, 5206, 6028, 7733, 7942, 10138, 10412, 13357, 15466, 15884, 20276, 26714, 28633, 30932, 49457, 53428, 55759, 57266, 96311, 98914, 111518, 114532, 146927, 192622, 197828, 223036, 293854, 385244, 544027, 587708, 1059421, 1088054, 1829909, 2118842, 2176108, 3659818, 4237684, 7319636, 20128999, 40257998, 80515996]

約数ペア:

[(1, 80515996), (2, 40257998), (4, 20128999), (11, 7319636), (19, 4237684), (22, 3659818), (37, 2176108), (38, 2118842), (44, 1829909), (74, 1088054), (76, 1059421), (137, 587708), (148, 544027), (209, 385244), (274, 293854), (361, 223036), (407, 197828), (418, 192622), (548, 146927), (703, 114532), (722, 111518), (814, 98914), (836, 96311), (1406, 57266), (1444, 55759), (1507, 53428), (1628, 49457), (2603, 30932), (2812, 28633), (3014, 26714), (3971, 20276), (5069, 15884), (5206, 15466), (6028, 13357), (7733, 10412), (7942, 10138)]