30945880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1399}}^1$

素因数の和:1496

約数の個数: 64

約数和(自身を含む): 80640000

約数和(自身を除く): 49694120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 140, 158, 280, 316, 395, 553, 632, 790, 1106, 1399, 1580, 2212, 2765, 2798, 3160, 4424, 5530, 5596, 6995, 9793, 11060, 11192, 13990, 19586, 22120, 27980, 39172, 48965, 55960, 78344, 97930, 110521, 195860, 221042, 391720, 442084, 552605, 773647, 884168, 1105210, 1547294, 2210420, 3094588, 3868235, 4420840, 6189176, 7736470, 15472940, 30945880]

約数ペア:

[(1, 30945880), (2, 15472940), (4, 7736470), (5, 6189176), (7, 4420840), (8, 3868235), (10, 3094588), (14, 2210420), (20, 1547294), (28, 1105210), (35, 884168), (40, 773647), (56, 552605), (70, 442084), (79, 391720), (140, 221042), (158, 195860), (280, 110521), (316, 97930), (395, 78344), (553, 55960), (632, 48965), (790, 39172), (1106, 27980), (1399, 22120), (1580, 19586), (2212, 13990), (2765, 11192), (2798, 11060), (3160, 9793), (4424, 6995), (5530, 5596)]