20657181950

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{3347}}^1$

素因数の和:3566

約数の個数: 96

約数和(自身を含む): 41765121504

約数和(自身を除く): 21107939554

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 53, 85, 106, 137, 170, 265, 274, 425, 530, 685, 850, 901, 1325, 1370, 1802, 2329, 2650, 3347, 3425, 4505, 4658, 6694, 6850, 7261, 9010, 11645, 14522, 16735, 22525, 23290, 33470, 36305, 45050, 56899, 58225, 72610, 83675, 113798, 116450, 123437, 167350, 177391, 181525, 246874, 284495, 354782, 363050, 458539, 568990, 617185, 886955, 917078, 1234370, 1422475, 1773910, 2292695, 2844950, 3015647, 3085925, 4434775, 4585390, 6031294, 6171850, 7795163, 8869550, 11463475, 15078235, 15590326, 22926950, 24302567, 30156470, 38975815, 48605134, 75391175, 77951630, 121512835, 150782350, 194879075, 243025670, 389758150, 413143639, 607564175, 826287278, 1215128350, 2065718195, 4131436390, 10328590975, 20657181950]

約数ペア:

[(1, 20657181950), (2, 10328590975), (5, 4131436390), (10, 2065718195), (17, 1215128350), (25, 826287278), (34, 607564175), (50, 413143639), (53, 389758150), (85, 243025670), (106, 194879075), (137, 150782350), (170, 121512835), (265, 77951630), (274, 75391175), (425, 48605134), (530, 38975815), (685, 30156470), (850, 24302567), (901, 22926950), (1325, 15590326), (1370, 15078235), (1802, 11463475), (2329, 8869550), (2650, 7795163), (3347, 6171850), (3425, 6031294), (4505, 4585390), (4658, 4434775), (6694, 3085925), (6850, 3015647), (7261, 2844950), (9010, 2292695), (11645, 1773910), (14522, 1422475), (16735, 1234370), (22525, 917078), (23290, 886955), (33470, 617185), (36305, 568990), (45050, 458539), (56899, 363050), (58225, 354782), (72610, 284495), (83675, 246874), (113798, 181525), (116450, 177391), (123437, 167350)]