19990390048

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1\times {\mathrm{2179}}^1$

素因数の和:2478

約数の個数: 96

約数和(自身を含む): 42190848000

約数和(自身を除く): 22200457952

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 79, 152, 158, 191, 304, 316, 382, 608, 632, 764, 1264, 1501, 1528, 2179, 2528, 3002, 3056, 3629, 4358, 6004, 6112, 7258, 8716, 12008, 14516, 15089, 17432, 24016, 29032, 30178, 34864, 41401, 48032, 58064, 60356, 69728, 82802, 116128, 120712, 165604, 172141, 241424, 286691, 331208, 344282, 416189, 482848, 573382, 662416, 688564, 832378, 1146764, 1324832, 1377128, 1664756, 2293528, 2754256, 3270679, 3329512, 4587056, 5508512, 6541358, 6659024, 7907591, 9174112, 13082716, 13318048, 15815182, 26165432, 31630364, 32878931, 52330864, 63260728, 65757862, 104661728, 126521456, 131515724, 253042912, 263031448, 526062896, 624699689, 1052125792, 1249399378, 2498798756, 4997597512, 9995195024, 19990390048]

約数ペア:

[(1, 19990390048), (2, 9995195024), (4, 4997597512), (8, 2498798756), (16, 1249399378), (19, 1052125792), (32, 624699689), (38, 526062896), (76, 263031448), (79, 253042912), (152, 131515724), (158, 126521456), (191, 104661728), (304, 65757862), (316, 63260728), (382, 52330864), (608, 32878931), (632, 31630364), (764, 26165432), (1264, 15815182), (1501, 13318048), (1528, 13082716), (2179, 9174112), (2528, 7907591), (3002, 6659024), (3056, 6541358), (3629, 5508512), (4358, 4587056), (6004, 3329512), (6112, 3270679), (7258, 2754256), (8716, 2293528), (12008, 1664756), (14516, 1377128), (15089, 1324832), (17432, 1146764), (24016, 832378), (29032, 688564), (30178, 662416), (34864, 573382), (41401, 482848), (48032, 416189), (58064, 344282), (60356, 331208), (69728, 286691), (82802, 241424), (116128, 172141), (120712, 165604)]