20128688500

素因数分解:

$2^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{38821}}^1$

素因数の和:38918

約数の個数: 96

約数和(自身を含む): 47311284384

約数和(自身を除く): 27182595884

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 61, 68, 85, 100, 122, 125, 170, 244, 250, 305, 340, 425, 500, 610, 850, 1037, 1220, 1525, 1700, 2074, 2125, 3050, 4148, 4250, 5185, 6100, 7625, 8500, 10370, 15250, 20740, 25925, 30500, 38821, 51850, 77642, 103700, 129625, 155284, 194105, 259250, 388210, 518500, 659957, 776420, 970525, 1319914, 1941050, 2368081, 2639828, 3299785, 3882100, 4736162, 4852625, 6599570, 9472324, 9705250, 11840405, 13199140, 16498925, 19410500, 23680810, 32997850, 40257377, 47361620, 59202025, 65995700, 80514754, 82494625, 118404050, 161029508, 164989250, 201286885, 236808100, 296010125, 329978500, 402573770, 592020250, 805147540, 1006434425, 1184040500, 2012868850, 4025737700, 5032172125, 10064344250, 20128688500]

約数ペア:

[(1, 20128688500), (2, 10064344250), (4, 5032172125), (5, 4025737700), (10, 2012868850), (17, 1184040500), (20, 1006434425), (25, 805147540), (34, 592020250), (50, 402573770), (61, 329978500), (68, 296010125), (85, 236808100), (100, 201286885), (122, 164989250), (125, 161029508), (170, 118404050), (244, 82494625), (250, 80514754), (305, 65995700), (340, 59202025), (425, 47361620), (500, 40257377), (610, 32997850), (850, 23680810), (1037, 19410500), (1220, 16498925), (1525, 13199140), (1700, 11840405), (2074, 9705250), (2125, 9472324), (3050, 6599570), (4148, 4852625), (4250, 4736162), (5185, 3882100), (6100, 3299785), (7625, 2639828), (8500, 2368081), (10370, 1941050), (15250, 1319914), (20740, 970525), (25925, 776420), (30500, 659957), (38821, 518500), (51850, 388210), (77642, 259250), (103700, 194105), (129625, 155284)]