28391790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{383}}^1$

素因数の和:753

約数の個数: 64

約数和(自身を含む): 78299136

約数和(自身を除く): 49907346

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 353, 383, 706, 766, 1059, 1149, 1765, 1915, 2118, 2298, 2471, 2681, 3530, 3830, 4942, 5295, 5362, 5745, 7413, 8043, 10590, 11490, 12355, 13405, 14826, 16086, 24710, 26810, 37065, 40215, 74130, 80430, 135199, 270398, 405597, 675995, 811194, 946393, 1351990, 1892786, 2027985, 2839179, 4055970, 4731965, 5678358, 9463930, 14195895, 28391790]

約数ペア:

[(1, 28391790), (2, 14195895), (3, 9463930), (5, 5678358), (6, 4731965), (7, 4055970), (10, 2839179), (14, 2027985), (15, 1892786), (21, 1351990), (30, 946393), (35, 811194), (42, 675995), (70, 405597), (105, 270398), (210, 135199), (353, 80430), (383, 74130), (706, 40215), (766, 37065), (1059, 26810), (1149, 24710), (1765, 16086), (1915, 14826), (2118, 13405), (2298, 12355), (2471, 11490), (2681, 10590), (3530, 8043), (3830, 7413), (4942, 5745), (5295, 5362)]