871984720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{3203}}^1$

素因数の和:3340

約数の個数: 80

約数和(自身を含む): 2102490432

約数和(自身を除く): 1230505712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 83, 164, 166, 205, 328, 332, 410, 415, 656, 664, 820, 830, 1328, 1640, 1660, 3203, 3280, 3320, 3403, 6406, 6640, 6806, 12812, 13612, 16015, 17015, 25624, 27224, 32030, 34030, 51248, 54448, 64060, 68060, 128120, 131323, 136120, 256240, 262646, 265849, 272240, 525292, 531698, 656615, 1050584, 1063396, 1313230, 1329245, 2101168, 2126792, 2626460, 2658490, 4253584, 5252920, 5316980, 10505840, 10633960, 10899809, 21267920, 21799618, 43599236, 54499045, 87198472, 108998090, 174396944, 217996180, 435992360, 871984720]

約数ペア:

[(1, 871984720), (2, 435992360), (4, 217996180), (5, 174396944), (8, 108998090), (10, 87198472), (16, 54499045), (20, 43599236), (40, 21799618), (41, 21267920), (80, 10899809), (82, 10633960), (83, 10505840), (164, 5316980), (166, 5252920), (205, 4253584), (328, 2658490), (332, 2626460), (410, 2126792), (415, 2101168), (656, 1329245), (664, 1313230), (820, 1063396), (830, 1050584), (1328, 656615), (1640, 531698), (1660, 525292), (3203, 272240), (3280, 265849), (3320, 262646), (3403, 256240), (6406, 136120), (6640, 131323), (6806, 128120), (12812, 68060), (13612, 64060), (16015, 54448), (17015, 51248), (25624, 34030), (27224, 32030)]