201998420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1987}}^1$

素因数の和:2049

約数の個数: 96

約数和(自身を含む): 504983808

約数和(自身を除く): 302985388

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 23, 26, 34, 46, 52, 65, 68, 85, 92, 115, 130, 170, 221, 230, 260, 299, 340, 391, 442, 460, 598, 782, 884, 1105, 1196, 1495, 1564, 1955, 1987, 2210, 2990, 3910, 3974, 4420, 5083, 5980, 7820, 7948, 9935, 10166, 19870, 20332, 25415, 25831, 33779, 39740, 45701, 50830, 51662, 67558, 91402, 101660, 103324, 129155, 135116, 168895, 182804, 228505, 258310, 337790, 439127, 457010, 516620, 594113, 675580, 776917, 878254, 914020, 1188226, 1553834, 1756508, 2195635, 2376452, 2970565, 3107668, 3884585, 4391270, 5941130, 7769170, 8782540, 10099921, 11882260, 15538340, 20199842, 40399684, 50499605, 100999210, 201998420]

約数ペア:

[(1, 201998420), (2, 100999210), (4, 50499605), (5, 40399684), (10, 20199842), (13, 15538340), (17, 11882260), (20, 10099921), (23, 8782540), (26, 7769170), (34, 5941130), (46, 4391270), (52, 3884585), (65, 3107668), (68, 2970565), (85, 2376452), (92, 2195635), (115, 1756508), (130, 1553834), (170, 1188226), (221, 914020), (230, 878254), (260, 776917), (299, 675580), (340, 594113), (391, 516620), (442, 457010), (460, 439127), (598, 337790), (782, 258310), (884, 228505), (1105, 182804), (1196, 168895), (1495, 135116), (1564, 129155), (1955, 103324), (1987, 101660), (2210, 91402), (2990, 67558), (3910, 51662), (3974, 50830), (4420, 45701), (5083, 39740), (5980, 33779), (7820, 25831), (7948, 25415), (9935, 20332), (10166, 19870)]