211232140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:480

約数の個数: 144

約数和(自身を含む): 565367040

約数和(自身を除く): 354134900

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 31, 34, 35, 49, 62, 68, 70, 85, 98, 119, 124, 140, 155, 170, 196, 217, 238, 245, 310, 340, 409, 434, 476, 490, 527, 595, 620, 818, 833, 868, 980, 1054, 1085, 1190, 1519, 1636, 1666, 2045, 2108, 2170, 2380, 2635, 2863, 3038, 3332, 3689, 4090, 4165, 4340, 5270, 5726, 6076, 6953, 7378, 7595, 8180, 8330, 10540, 11452, 12679, 13906, 14315, 14756, 15190, 16660, 18445, 20041, 25358, 25823, 27812, 28630, 30380, 34765, 36890, 40082, 48671, 50716, 51646, 57260, 63395, 69530, 73780, 80164, 88753, 97342, 100205, 103292, 126790, 129115, 139060, 177506, 194684, 200410, 215543, 243355, 253580, 258230, 340697, 355012, 400820, 431086, 443765, 486710, 516460, 621271, 681394, 862172, 887530, 973420, 1077715, 1242542, 1362788, 1508801, 1703485, 1775060, 2155430, 2485084, 3017602, 3106355, 3406970, 4310860, 6035204, 6212710, 6813940, 7544005, 10561607, 12425420, 15088010, 21123214, 30176020, 42246428, 52808035, 105616070, 211232140]

約数ペア:

[(1, 211232140), (2, 105616070), (4, 52808035), (5, 42246428), (7, 30176020), (10, 21123214), (14, 15088010), (17, 12425420), (20, 10561607), (28, 7544005), (31, 6813940), (34, 6212710), (35, 6035204), (49, 4310860), (62, 3406970), (68, 3106355), (70, 3017602), (85, 2485084), (98, 2155430), (119, 1775060), (124, 1703485), (140, 1508801), (155, 1362788), (170, 1242542), (196, 1077715), (217, 973420), (238, 887530), (245, 862172), (310, 681394), (340, 621271), (409, 516460), (434, 486710), (476, 443765), (490, 431086), (527, 400820), (595, 355012), (620, 340697), (818, 258230), (833, 253580), (868, 243355), (980, 215543), (1054, 200410), (1085, 194684), (1190, 177506), (1519, 139060), (1636, 129115), (1666, 126790), (2045, 103292), (2108, 100205), (2170, 97342), (2380, 88753), (2635, 80164), (2863, 73780), (3038, 69530), (3332, 63395), (3689, 57260), (4090, 51646), (4165, 50716), (4340, 48671), (5270, 40082), (5726, 36890), (6076, 34765), (6953, 30380), (7378, 28630), (7595, 27812), (8180, 25823), (8330, 25358), (10540, 20041), (11452, 18445), (12679, 16660), (13906, 15190), (14315, 14756)]