19786448

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:196

約数の個数: 80

約数和(自身を含む): 45205440

約数和(自身を除く): 25418992

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 61, 76, 88, 97, 122, 152, 176, 194, 209, 244, 304, 388, 418, 488, 671, 776, 836, 976, 1067, 1159, 1342, 1552, 1672, 1843, 2134, 2318, 2684, 3344, 3686, 4268, 4636, 5368, 5917, 7372, 8536, 9272, 10736, 11834, 12749, 14744, 17072, 18544, 20273, 23668, 25498, 29488, 40546, 47336, 50996, 65087, 81092, 94672, 101992, 112423, 130174, 162184, 203984, 224846, 260348, 324368, 449692, 520696, 899384, 1041392, 1236653, 1798768, 2473306, 4946612, 9893224, 19786448]

約数ペア:

[(1, 19786448), (2, 9893224), (4, 4946612), (8, 2473306), (11, 1798768), (16, 1236653), (19, 1041392), (22, 899384), (38, 520696), (44, 449692), (61, 324368), (76, 260348), (88, 224846), (97, 203984), (122, 162184), (152, 130174), (176, 112423), (194, 101992), (209, 94672), (244, 81092), (304, 65087), (388, 50996), (418, 47336), (488, 40546), (671, 29488), (776, 25498), (836, 23668), (976, 20273), (1067, 18544), (1159, 17072), (1342, 14744), (1552, 12749), (1672, 11834), (1843, 10736), (2134, 9272), (2318, 8536), (2684, 7372), (3344, 5917), (3686, 5368), (4268, 4636)]