19812930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:275

約数の個数: 64

約数和(自身を含む): 49230720

約数和(自身を除く): 29417790

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 73, 83, 109, 146, 166, 218, 219, 249, 327, 365, 415, 438, 498, 545, 654, 730, 830, 1090, 1095, 1245, 1635, 2190, 2490, 3270, 6059, 7957, 9047, 12118, 15914, 18094, 18177, 23871, 27141, 30295, 36354, 39785, 45235, 47742, 54282, 60590, 79570, 90470, 90885, 119355, 135705, 181770, 238710, 271410, 660431, 1320862, 1981293, 3302155, 3962586, 6604310, 9906465, 19812930]

約数ペア:

[(1, 19812930), (2, 9906465), (3, 6604310), (5, 3962586), (6, 3302155), (10, 1981293), (15, 1320862), (30, 660431), (73, 271410), (83, 238710), (109, 181770), (146, 135705), (166, 119355), (218, 90885), (219, 90470), (249, 79570), (327, 60590), (365, 54282), (415, 47742), (438, 45235), (498, 39785), (545, 36354), (654, 30295), (730, 27141), (830, 23871), (1090, 18177), (1095, 18094), (1245, 15914), (1635, 12118), (2190, 9047), (2490, 7957), (3270, 6059)]