1911990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:213

約数の個数: 64

約数和(自身を含む): 5101056

約数和(自身を除く): 3189066

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 23, 30, 34, 46, 51, 69, 85, 102, 115, 138, 163, 170, 230, 255, 326, 345, 391, 489, 510, 690, 782, 815, 978, 1173, 1630, 1955, 2346, 2445, 2771, 3749, 3910, 4890, 5542, 5865, 7498, 8313, 11247, 11730, 13855, 16626, 18745, 22494, 27710, 37490, 41565, 56235, 63733, 83130, 112470, 127466, 191199, 318665, 382398, 637330, 955995, 1911990]

約数ペア:

[(1, 1911990), (2, 955995), (3, 637330), (5, 382398), (6, 318665), (10, 191199), (15, 127466), (17, 112470), (23, 83130), (30, 63733), (34, 56235), (46, 41565), (51, 37490), (69, 27710), (85, 22494), (102, 18745), (115, 16626), (138, 13855), (163, 11730), (170, 11247), (230, 8313), (255, 7498), (326, 5865), (345, 5542), (391, 4890), (489, 3910), (510, 3749), (690, 2771), (782, 2445), (815, 2346), (978, 1955), (1173, 1630)]