18808523980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3691}}^1\times {\mathrm{8219}}^1$

素因数の和:11950

約数の個数: 48

約数和(自身を含む): 40788034560

約数和(自身を除く): 21979510580

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 3691, 7382, 8219, 14764, 16438, 18455, 32876, 36910, 41095, 73820, 82190, 114421, 164380, 228842, 254789, 457684, 509578, 572105, 1019156, 1144210, 1273945, 2288420, 2547890, 5095780, 30336329, 60672658, 121345316, 151681645, 303363290, 606726580, 940426199, 1880852398, 3761704796, 4702130995, 9404261990, 18808523980]

約数ペア:

[(1, 18808523980), (2, 9404261990), (4, 4702130995), (5, 3761704796), (10, 1880852398), (20, 940426199), (31, 606726580), (62, 303363290), (124, 151681645), (155, 121345316), (310, 60672658), (620, 30336329), (3691, 5095780), (7382, 2547890), (8219, 2288420), (14764, 1273945), (16438, 1144210), (18455, 1019156), (32876, 572105), (36910, 509578), (41095, 457684), (73820, 254789), (82190, 228842), (114421, 164380)]