19884488

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{347}}^1$

素因数の和:414

約数の個数: 64

約数和(自身を含む): 43848000

約数和(自身を除く): 23963512

約数列:

[1, 2, 4, 8, 13, 19, 26, 29, 38, 52, 58, 76, 104, 116, 152, 232, 247, 347, 377, 494, 551, 694, 754, 988, 1102, 1388, 1508, 1976, 2204, 2776, 3016, 4408, 4511, 6593, 7163, 9022, 10063, 13186, 14326, 18044, 20126, 26372, 28652, 36088, 40252, 52744, 57304, 80504, 85709, 130819, 171418, 191197, 261638, 342836, 382394, 523276, 685672, 764788, 1046552, 1529576, 2485561, 4971122, 9942244, 19884488]

約数ペア:

[(1, 19884488), (2, 9942244), (4, 4971122), (8, 2485561), (13, 1529576), (19, 1046552), (26, 764788), (29, 685672), (38, 523276), (52, 382394), (58, 342836), (76, 261638), (104, 191197), (116, 171418), (152, 130819), (232, 85709), (247, 80504), (347, 57304), (377, 52744), (494, 40252), (551, 36088), (694, 28652), (754, 26372), (988, 20126), (1102, 18044), (1388, 14326), (1508, 13186), (1976, 10063), (2204, 9022), (2776, 7163), (3016, 6593), (4408, 4511)]