20147781260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{239}}^1\times {\mathrm{1361}}^1$

素因数の和:1791

約数の個数: 96

約数和(自身を含む): 45030988800

約数和(自身を除く): 24883207540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 163, 190, 239, 326, 380, 478, 652, 815, 956, 1195, 1361, 1630, 2390, 2722, 3097, 3260, 4541, 4780, 5444, 6194, 6805, 9082, 12388, 13610, 15485, 18164, 22705, 25859, 27220, 30970, 38957, 45410, 51718, 61940, 77914, 90820, 103436, 129295, 155828, 194785, 221843, 258590, 325279, 389570, 443686, 517180, 650558, 740183, 779140, 887372, 1109215, 1301116, 1480366, 1626395, 2218430, 2960732, 3252790, 3700915, 4215017, 4436860, 6180301, 6505580, 7401830, 8430034, 12360602, 14803660, 16860068, 21075085, 24721204, 30901505, 42150170, 53020477, 61803010, 84300340, 106040954, 123606020, 212081908, 265102385, 530204770, 1007389063, 1060409540, 2014778126, 4029556252, 5036945315, 10073890630, 20147781260]

約数ペア:

[(1, 20147781260), (2, 10073890630), (4, 5036945315), (5, 4029556252), (10, 2014778126), (19, 1060409540), (20, 1007389063), (38, 530204770), (76, 265102385), (95, 212081908), (163, 123606020), (190, 106040954), (239, 84300340), (326, 61803010), (380, 53020477), (478, 42150170), (652, 30901505), (815, 24721204), (956, 21075085), (1195, 16860068), (1361, 14803660), (1630, 12360602), (2390, 8430034), (2722, 7401830), (3097, 6505580), (3260, 6180301), (4541, 4436860), (4780, 4215017), (5444, 3700915), (6194, 3252790), (6805, 2960732), (9082, 2218430), (12388, 1626395), (13610, 1480366), (15485, 1301116), (18164, 1109215), (22705, 887372), (25859, 779140), (27220, 740183), (30970, 650558), (38957, 517180), (45410, 443686), (51718, 389570), (61940, 325279), (77914, 258590), (90820, 221843), (103436, 194785), (129295, 155828)]