388965645

素因数分解:

$3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:412

約数の個数: 80

約数和(自身を含む): 726005808

約数和(自身を除く): 337040163

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 81, 101, 111, 135, 185, 257, 303, 333, 405, 505, 555, 771, 909, 999, 1285, 1515, 1665, 2313, 2727, 2997, 3737, 3855, 4545, 4995, 6939, 8181, 9509, 11211, 11565, 13635, 14985, 18685, 20817, 25957, 28527, 33633, 34695, 40905, 47545, 56055, 77871, 85581, 100899, 104085, 129785, 142635, 168165, 233613, 256743, 302697, 389355, 427905, 504495, 700839, 770229, 960409, 1168065, 1283715, 1513485, 2102517, 2881227, 3504195, 3851145, 4802045, 8643681, 10512585, 14406135, 25931043, 43218405, 77793129, 129655215, 388965645]

約数ペア:

[(1, 388965645), (3, 129655215), (5, 77793129), (9, 43218405), (15, 25931043), (27, 14406135), (37, 10512585), (45, 8643681), (81, 4802045), (101, 3851145), (111, 3504195), (135, 2881227), (185, 2102517), (257, 1513485), (303, 1283715), (333, 1168065), (405, 960409), (505, 770229), (555, 700839), (771, 504495), (909, 427905), (999, 389355), (1285, 302697), (1515, 256743), (1665, 233613), (2313, 168165), (2727, 142635), (2997, 129785), (3737, 104085), (3855, 100899), (4545, 85581), (4995, 77871), (6939, 56055), (8181, 47545), (9509, 40905), (11211, 34695), (11565, 33633), (13635, 28527), (14985, 25957), (18685, 20817)]