121599980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:279

約数の個数: 96

約数和(自身を含む): 284497920

約数和(自身を除く): 162897940

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 62, 68, 83, 85, 124, 139, 155, 166, 170, 278, 310, 332, 340, 415, 527, 556, 620, 695, 830, 1054, 1390, 1411, 1660, 2108, 2363, 2573, 2635, 2780, 2822, 4309, 4726, 5146, 5270, 5644, 7055, 8618, 9452, 10292, 10540, 11537, 11815, 12865, 14110, 17236, 21545, 23074, 23630, 25730, 28220, 43090, 43741, 46148, 47260, 51460, 57685, 73253, 86180, 87482, 115370, 146506, 174964, 196129, 218705, 230740, 293012, 357647, 366265, 392258, 437410, 715294, 732530, 784516, 874820, 980645, 1430588, 1465060, 1788235, 1961290, 3576470, 3922580, 6079999, 7152940, 12159998, 24319996, 30399995, 60799990, 121599980]

約数ペア:

[(1, 121599980), (2, 60799990), (4, 30399995), (5, 24319996), (10, 12159998), (17, 7152940), (20, 6079999), (31, 3922580), (34, 3576470), (62, 1961290), (68, 1788235), (83, 1465060), (85, 1430588), (124, 980645), (139, 874820), (155, 784516), (166, 732530), (170, 715294), (278, 437410), (310, 392258), (332, 366265), (340, 357647), (415, 293012), (527, 230740), (556, 218705), (620, 196129), (695, 174964), (830, 146506), (1054, 115370), (1390, 87482), (1411, 86180), (1660, 73253), (2108, 57685), (2363, 51460), (2573, 47260), (2635, 46148), (2780, 43741), (2822, 43090), (4309, 28220), (4726, 25730), (5146, 23630), (5270, 23074), (5644, 21545), (7055, 17236), (8618, 14110), (9452, 12865), (10292, 11815), (10540, 11537)]