19090000

素因数分解:

$2^4\times 5^4\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:134

約数の個数: 100

約数和(自身を含む): 48809376

約数和(自身を除く): 29719376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 40, 46, 50, 80, 83, 92, 100, 115, 125, 166, 184, 200, 230, 250, 332, 368, 400, 415, 460, 500, 575, 625, 664, 830, 920, 1000, 1150, 1250, 1328, 1660, 1840, 1909, 2000, 2075, 2300, 2500, 2875, 3320, 3818, 4150, 4600, 5000, 5750, 6640, 7636, 8300, 9200, 9545, 10000, 10375, 11500, 14375, 15272, 16600, 19090, 20750, 23000, 28750, 30544, 33200, 38180, 41500, 46000, 47725, 51875, 57500, 76360, 83000, 95450, 103750, 115000, 152720, 166000, 190900, 207500, 230000, 238625, 381800, 415000, 477250, 763600, 830000, 954500, 1193125, 1909000, 2386250, 3818000, 4772500, 9545000, 19090000]

約数ペア:

[(1, 19090000), (2, 9545000), (4, 4772500), (5, 3818000), (8, 2386250), (10, 1909000), (16, 1193125), (20, 954500), (23, 830000), (25, 763600), (40, 477250), (46, 415000), (50, 381800), (80, 238625), (83, 230000), (92, 207500), (100, 190900), (115, 166000), (125, 152720), (166, 115000), (184, 103750), (200, 95450), (230, 83000), (250, 76360), (332, 57500), (368, 51875), (400, 47725), (415, 46000), (460, 41500), (500, 38180), (575, 33200), (625, 30544), (664, 28750), (830, 23000), (920, 20750), (1000, 19090), (1150, 16600), (1250, 15272), (1328, 14375), (1660, 11500), (1840, 10375), (1909, 10000), (2000, 9545), (2075, 9200), (2300, 8300), (2500, 7636), (2875, 6640), (3320, 5750), (3818, 5000), (4150, 4600)]