19078640

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:215

約数の個数: 120

約数和(自身を含む): 53603712

約数和(自身を除く): 34525072

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 157, 196, 217, 245, 248, 280, 310, 314, 392, 434, 490, 496, 560, 620, 628, 784, 785, 868, 980, 1085, 1099, 1240, 1256, 1519, 1570, 1736, 1960, 2170, 2198, 2480, 2512, 3038, 3140, 3472, 3920, 4340, 4396, 4867, 5495, 6076, 6280, 7595, 7693, 8680, 8792, 9734, 10990, 12152, 12560, 15190, 15386, 17360, 17584, 19468, 21980, 24304, 24335, 30380, 30772, 34069, 38465, 38936, 43960, 48670, 60760, 61544, 68138, 76930, 77872, 87920, 97340, 121520, 123088, 136276, 153860, 170345, 194680, 238483, 272552, 307720, 340690, 389360, 476966, 545104, 615440, 681380, 953932, 1192415, 1362760, 1907864, 2384830, 2725520, 3815728, 4769660, 9539320, 19078640]

約数ペア:

[(1, 19078640), (2, 9539320), (4, 4769660), (5, 3815728), (7, 2725520), (8, 2384830), (10, 1907864), (14, 1362760), (16, 1192415), (20, 953932), (28, 681380), (31, 615440), (35, 545104), (40, 476966), (49, 389360), (56, 340690), (62, 307720), (70, 272552), (80, 238483), (98, 194680), (112, 170345), (124, 153860), (140, 136276), (155, 123088), (157, 121520), (196, 97340), (217, 87920), (245, 77872), (248, 76930), (280, 68138), (310, 61544), (314, 60760), (392, 48670), (434, 43960), (490, 38936), (496, 38465), (560, 34069), (620, 30772), (628, 30380), (784, 24335), (785, 24304), (868, 21980), (980, 19468), (1085, 17584), (1099, 17360), (1240, 15386), (1256, 15190), (1519, 12560), (1570, 12152), (1736, 10990), (1960, 9734), (2170, 8792), (2198, 8680), (2480, 7693), (2512, 7595), (3038, 6280), (3140, 6076), (3472, 5495), (3920, 4867), (4340, 4396)]