28432740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{509}}^1$

素因数の和:554

約数の個数: 144

約数和(自身を含む): 97675200

約数和(自身を除く): 69242460

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 49, 57, 60, 70, 76, 84, 95, 98, 105, 114, 133, 140, 147, 190, 196, 210, 228, 245, 266, 285, 294, 380, 399, 420, 490, 509, 532, 570, 588, 665, 735, 798, 931, 980, 1018, 1140, 1330, 1470, 1527, 1596, 1862, 1995, 2036, 2545, 2660, 2793, 2940, 3054, 3563, 3724, 3990, 4655, 5090, 5586, 6108, 7126, 7635, 7980, 9310, 9671, 10180, 10689, 11172, 13965, 14252, 15270, 17815, 18620, 19342, 21378, 24941, 27930, 29013, 30540, 35630, 38684, 42756, 48355, 49882, 53445, 55860, 58026, 67697, 71260, 74823, 96710, 99764, 106890, 116052, 124705, 135394, 145065, 149646, 193420, 203091, 213780, 249410, 270788, 290130, 299292, 338485, 374115, 406182, 473879, 498820, 580260, 676970, 748230, 812364, 947758, 1015455, 1353940, 1421637, 1496460, 1895516, 2030910, 2369395, 2843274, 4061820, 4738790, 5686548, 7108185, 9477580, 14216370, 28432740]

約数ペア:

[(1, 28432740), (2, 14216370), (3, 9477580), (4, 7108185), (5, 5686548), (6, 4738790), (7, 4061820), (10, 2843274), (12, 2369395), (14, 2030910), (15, 1895516), (19, 1496460), (20, 1421637), (21, 1353940), (28, 1015455), (30, 947758), (35, 812364), (38, 748230), (42, 676970), (49, 580260), (57, 498820), (60, 473879), (70, 406182), (76, 374115), (84, 338485), (95, 299292), (98, 290130), (105, 270788), (114, 249410), (133, 213780), (140, 203091), (147, 193420), (190, 149646), (196, 145065), (210, 135394), (228, 124705), (245, 116052), (266, 106890), (285, 99764), (294, 96710), (380, 74823), (399, 71260), (420, 67697), (490, 58026), (509, 55860), (532, 53445), (570, 49882), (588, 48355), (665, 42756), (735, 38684), (798, 35630), (931, 30540), (980, 29013), (1018, 27930), (1140, 24941), (1330, 21378), (1470, 19342), (1527, 18620), (1596, 17815), (1862, 15270), (1995, 14252), (2036, 13965), (2545, 11172), (2660, 10689), (2793, 10180), (2940, 9671), (3054, 9310), (3563, 7980), (3724, 7635), (3990, 7126), (4655, 6108), (5090, 5586)]