206393805

素因数分解:

$3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1$

素因数の和:499

約数の個数: 64

約数和(自身を含む): 379261440

約数和(自身を除く): 172867635

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 71, 135, 183, 213, 305, 353, 355, 549, 639, 915, 1059, 1065, 1647, 1765, 1917, 2745, 3177, 3195, 4331, 5295, 8235, 9531, 9585, 12993, 15885, 21533, 21655, 25063, 38979, 47655, 64599, 64965, 75189, 107665, 116937, 125315, 193797, 194895, 225567, 322995, 375945, 581391, 584685, 676701, 968985, 1127835, 1528843, 2906955, 3383505, 4586529, 7644215, 13759587, 22932645, 41278761, 68797935, 206393805]

約数ペア:

[(1, 206393805), (3, 68797935), (5, 41278761), (9, 22932645), (15, 13759587), (27, 7644215), (45, 4586529), (61, 3383505), (71, 2906955), (135, 1528843), (183, 1127835), (213, 968985), (305, 676701), (353, 584685), (355, 581391), (549, 375945), (639, 322995), (915, 225567), (1059, 194895), (1065, 193797), (1647, 125315), (1765, 116937), (1917, 107665), (2745, 75189), (3177, 64965), (3195, 64599), (4331, 47655), (5295, 38979), (8235, 25063), (9531, 21655), (9585, 21533), (12993, 15885)]