398260720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1123}}^1$

素因数の和:1191

約数の個数: 160

約数和(自身を含む): 1123928064

約数和(自身を除く): 725667344

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 31, 40, 44, 52, 55, 62, 65, 80, 88, 104, 110, 124, 130, 143, 155, 176, 208, 220, 248, 260, 286, 310, 341, 403, 440, 496, 520, 572, 620, 682, 715, 806, 880, 1040, 1123, 1144, 1240, 1364, 1430, 1612, 1705, 2015, 2246, 2288, 2480, 2728, 2860, 3224, 3410, 4030, 4433, 4492, 5456, 5615, 5720, 6448, 6820, 8060, 8866, 8984, 11230, 11440, 12353, 13640, 14599, 16120, 17732, 17968, 22165, 22460, 24706, 27280, 29198, 32240, 34813, 35464, 44330, 44920, 49412, 58396, 61765, 69626, 70928, 72995, 88660, 89840, 98824, 116792, 123530, 139252, 145990, 160589, 174065, 177320, 197648, 233584, 247060, 278504, 291980, 321178, 348130, 354640, 382943, 452569, 494120, 557008, 583960, 642356, 696260, 765886, 802945, 905138, 988240, 1167920, 1284712, 1392520, 1531772, 1605890, 1810276, 1914715, 2262845, 2569424, 2785040, 3063544, 3211780, 3620552, 3829430, 4525690, 4978259, 6127088, 6423560, 7241104, 7658860, 9051380, 9956518, 12847120, 15317720, 18102760, 19913036, 24891295, 30635440, 36205520, 39826072, 49782590, 79652144, 99565180, 199130360, 398260720]

約数ペア:

[(1, 398260720), (2, 199130360), (4, 99565180), (5, 79652144), (8, 49782590), (10, 39826072), (11, 36205520), (13, 30635440), (16, 24891295), (20, 19913036), (22, 18102760), (26, 15317720), (31, 12847120), (40, 9956518), (44, 9051380), (52, 7658860), (55, 7241104), (62, 6423560), (65, 6127088), (80, 4978259), (88, 4525690), (104, 3829430), (110, 3620552), (124, 3211780), (130, 3063544), (143, 2785040), (155, 2569424), (176, 2262845), (208, 1914715), (220, 1810276), (248, 1605890), (260, 1531772), (286, 1392520), (310, 1284712), (341, 1167920), (403, 988240), (440, 905138), (496, 802945), (520, 765886), (572, 696260), (620, 642356), (682, 583960), (715, 557008), (806, 494120), (880, 452569), (1040, 382943), (1123, 354640), (1144, 348130), (1240, 321178), (1364, 291980), (1430, 278504), (1612, 247060), (1705, 233584), (2015, 197648), (2246, 177320), (2288, 174065), (2480, 160589), (2728, 145990), (2860, 139252), (3224, 123530), (3410, 116792), (4030, 98824), (4433, 89840), (4492, 88660), (5456, 72995), (5615, 70928), (5720, 69626), (6448, 61765), (6820, 58396), (8060, 49412), (8866, 44920), (8984, 44330), (11230, 35464), (11440, 34813), (12353, 32240), (13640, 29198), (14599, 27280), (16120, 24706), (17732, 22460), (17968, 22165)]