28847980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:104

約数の個数: 144

約数和(自身を含む): 79220736

約数和(自身を除く): 50372756

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 23, 28, 31, 34, 35, 46, 62, 68, 70, 85, 92, 115, 119, 124, 140, 155, 161, 170, 217, 230, 238, 289, 310, 322, 340, 391, 434, 460, 476, 527, 578, 595, 620, 644, 713, 782, 805, 868, 1054, 1085, 1156, 1190, 1426, 1445, 1564, 1610, 1955, 2023, 2108, 2170, 2380, 2635, 2737, 2852, 2890, 3220, 3565, 3689, 3910, 4046, 4340, 4991, 5270, 5474, 5780, 6647, 7130, 7378, 7820, 8092, 8959, 9982, 10115, 10540, 10948, 12121, 13294, 13685, 14260, 14756, 17918, 18445, 19964, 20230, 24242, 24955, 26588, 27370, 33235, 35836, 36890, 40460, 44795, 46529, 48484, 49910, 54740, 60605, 62713, 66470, 73780, 84847, 89590, 93058, 99820, 121210, 125426, 132940, 169694, 179180, 186116, 206057, 232645, 242420, 250852, 313565, 339388, 412114, 424235, 465290, 627130, 824228, 848470, 930580, 1030285, 1254260, 1442399, 1696940, 2060570, 2884798, 4121140, 5769596, 7211995, 14423990, 28847980]

約数ペア:

[(1, 28847980), (2, 14423990), (4, 7211995), (5, 5769596), (7, 4121140), (10, 2884798), (14, 2060570), (17, 1696940), (20, 1442399), (23, 1254260), (28, 1030285), (31, 930580), (34, 848470), (35, 824228), (46, 627130), (62, 465290), (68, 424235), (70, 412114), (85, 339388), (92, 313565), (115, 250852), (119, 242420), (124, 232645), (140, 206057), (155, 186116), (161, 179180), (170, 169694), (217, 132940), (230, 125426), (238, 121210), (289, 99820), (310, 93058), (322, 89590), (340, 84847), (391, 73780), (434, 66470), (460, 62713), (476, 60605), (527, 54740), (578, 49910), (595, 48484), (620, 46529), (644, 44795), (713, 40460), (782, 36890), (805, 35836), (868, 33235), (1054, 27370), (1085, 26588), (1156, 24955), (1190, 24242), (1426, 20230), (1445, 19964), (1564, 18445), (1610, 17918), (1955, 14756), (2023, 14260), (2108, 13685), (2170, 13294), (2380, 12121), (2635, 10948), (2737, 10540), (2852, 10115), (2890, 9982), (3220, 8959), (3565, 8092), (3689, 7820), (3910, 7378), (4046, 7130), (4340, 6647), (4991, 5780), (5270, 5474)]