80808780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{491}}^1$

素因数の和:727

約数の個数: 96

約数和(自身を含む): 245323008

約数和(自身を除く): 164514228

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 211, 260, 390, 422, 491, 633, 780, 844, 982, 1055, 1266, 1473, 1964, 2110, 2455, 2532, 2743, 2946, 3165, 4220, 4910, 5486, 5892, 6330, 6383, 7365, 8229, 9820, 10972, 12660, 12766, 13715, 14730, 16458, 19149, 25532, 27430, 29460, 31915, 32916, 38298, 41145, 54860, 63830, 76596, 82290, 95745, 103601, 127660, 164580, 191490, 207202, 310803, 382980, 414404, 518005, 621606, 1036010, 1243212, 1346813, 1554015, 2072020, 2693626, 3108030, 4040439, 5387252, 6216060, 6734065, 8080878, 13468130, 16161756, 20202195, 26936260, 40404390, 80808780]

約数ペア:

[(1, 80808780), (2, 40404390), (3, 26936260), (4, 20202195), (5, 16161756), (6, 13468130), (10, 8080878), (12, 6734065), (13, 6216060), (15, 5387252), (20, 4040439), (26, 3108030), (30, 2693626), (39, 2072020), (52, 1554015), (60, 1346813), (65, 1243212), (78, 1036010), (130, 621606), (156, 518005), (195, 414404), (211, 382980), (260, 310803), (390, 207202), (422, 191490), (491, 164580), (633, 127660), (780, 103601), (844, 95745), (982, 82290), (1055, 76596), (1266, 63830), (1473, 54860), (1964, 41145), (2110, 38298), (2455, 32916), (2532, 31915), (2743, 29460), (2946, 27430), (3165, 25532), (4220, 19149), (4910, 16458), (5486, 14730), (5892, 13715), (6330, 12766), (6383, 12660), (7365, 10972), (8229, 9820)]