287445420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{557}}^1$

素因数の和:680

約数の個数: 144

約数和(自身を含む): 906691968

約数和(自身を除く): 619246548

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 61, 90, 94, 122, 141, 180, 183, 188, 235, 244, 282, 305, 366, 423, 470, 549, 557, 564, 610, 705, 732, 846, 915, 940, 1098, 1114, 1220, 1410, 1671, 1692, 1830, 2115, 2196, 2228, 2745, 2785, 2820, 2867, 3342, 3660, 4230, 5013, 5490, 5570, 5734, 6684, 8355, 8460, 8601, 10026, 10980, 11140, 11468, 14335, 16710, 17202, 20052, 25065, 25803, 26179, 28670, 33420, 33977, 34404, 43005, 50130, 51606, 52358, 57340, 67954, 78537, 86010, 100260, 101931, 103212, 104716, 129015, 130895, 135908, 157074, 169885, 172020, 203862, 235611, 258030, 261790, 305793, 314148, 339770, 392685, 407724, 471222, 509655, 516060, 523580, 611586, 679540, 785370, 942444, 1019310, 1178055, 1223172, 1528965, 1570740, 1596919, 2038620, 2356110, 3057930, 3193838, 4712220, 4790757, 6115860, 6387676, 7984595, 9581514, 14372271, 15969190, 19163028, 23953785, 28744542, 31938380, 47907570, 57489084, 71861355, 95815140, 143722710, 287445420]

約数ペア:

[(1, 287445420), (2, 143722710), (3, 95815140), (4, 71861355), (5, 57489084), (6, 47907570), (9, 31938380), (10, 28744542), (12, 23953785), (15, 19163028), (18, 15969190), (20, 14372271), (30, 9581514), (36, 7984595), (45, 6387676), (47, 6115860), (60, 4790757), (61, 4712220), (90, 3193838), (94, 3057930), (122, 2356110), (141, 2038620), (180, 1596919), (183, 1570740), (188, 1528965), (235, 1223172), (244, 1178055), (282, 1019310), (305, 942444), (366, 785370), (423, 679540), (470, 611586), (549, 523580), (557, 516060), (564, 509655), (610, 471222), (705, 407724), (732, 392685), (846, 339770), (915, 314148), (940, 305793), (1098, 261790), (1114, 258030), (1220, 235611), (1410, 203862), (1671, 172020), (1692, 169885), (1830, 157074), (2115, 135908), (2196, 130895), (2228, 129015), (2745, 104716), (2785, 103212), (2820, 101931), (2867, 100260), (3342, 86010), (3660, 78537), (4230, 67954), (5013, 57340), (5490, 52358), (5570, 51606), (5734, 50130), (6684, 43005), (8355, 34404), (8460, 33977), (8601, 33420), (10026, 28670), (10980, 26179), (11140, 25803), (11468, 25065), (14335, 20052), (16710, 17202)]